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Type: Prelims Only

  • Cashless Society – Digital Payments, Demonetization, etc.

    Light weight and Portable Payment System (LPSS) for emergencies

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Utkarsh 2.0 initiative, LPPS

    Mains level: Cashless payments

    payment

    Central Idea

    The Reserve Bank of India (RBI) has proposed the development of a Light weight and Portable Payment System (LPSS).

    Light weight and Portable Payment System (LPSS)

    • LPSS is referred to as a “bunker” equivalent, to ensure uninterrupted digital payments during exigencies such as natural calamities or war.
    • This system will operate independently of existing payment technologies like UPI, NEFT, and RTGS.
    • It can be operated from anywhere by a minimal staff during exigencies.
    • It will process critical transactions, such as bulk payments and interbank payments, during extreme and volatile situations.
    • The system operates on minimalistic hardware and software and is activated only when needed.

    Why such move?

    • As part of the Utkarsh 2.0 initiative, the RBI is working on strengthening the oversight framework for Centralised Payment Systems, including NEFT and RTGS.
    • The initiative aims to enhance the existing payment systems and introduce new functionalities to improve efficiency and reliability.

    Importance of an LPSS

    • Near-zero downtime: The RBI aims to create a payment system that can operate on minimalistic hardware and software, ensuring near-zero downtime of the payment and settlement system in the country.
    • Continuous liquidity pipeline: The lightweight system will facilitate uninterrupted functioning of essential payment services like bulk payments, interbank payments, and provision of cash to participant institutions, thereby keeping the liquidity pipeline of the economy alive and intact.
    • Stability of the economy: It is expected to process critical transactions, including government and market-related transactions that are crucial for maintaining the stability of the economy.
    • Enhancing public confidence: The resilient nature of the system will act as a bunker equivalent in payment systems, enhancing public confidence in digital payments and financial market infrastructure, even during extreme conditions.

    Differences between LPSS and UPI

    • Existing payment systems: The RBI acknowledges the availability of various payment systems in India for individuals and institutions, each with its distinct character and application.
    • Handling large transaction volumes: Conventional systems like RTGS, NEFT, and UPI are designed to handle large volumes of transactions while ensuring sustained availability, relying on complex wired networks and advanced IT infrastructure.
    • Vulnerability to catastrophic events: However, catastrophic events such as natural calamities and war can temporarily render these payment systems unavailable by disrupting the underlying information and communication infrastructure.
    • Preparedness for extreme situations: To address this vulnerability, the RBI believes it is prudent to be prepared with a lightweight payment system capable of functioning in extreme and volatile situations.

    Conclusion

    • The RBI has not provided a specific timeline for the launch of the lightweight payment and settlements system.
    • However, the concept serves as a crucial step towards ensuring the resilience of the payment ecosystem during emergencies.
    • Further research and development efforts are necessary to bring this system to fruition and enhance the overall stability and confidence in digital payments in India.

     

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  • ISRO Missions and Discoveries

    India discovers TOI 4603b Exoplanet

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Exoplanet TOI4603b

    Mains level: Not Much

    exoplanet

    Central Idea

    • A new Jupiter-size exoplanet with the highest density known till this date has been discovered by an international team of scientists at the Exoplanet Research Group of the Physical Research Laboratory (PRL), Ahmedabad.
    • Massive giant exoplanets are defined as those with a mass greater than four times that of Jupiter.

    About the Exoplanet TOI4603b

    • The exoplanet is found around the star called TOI4603 or HD 245134.
    • It has a mass 13 times greater than that of Jupiter and a density of approximately 14 g/cm3.
    • Initially, NASA’s Transiting Exoplanet Survey Satellite (TESS) declared TOI4603 as a possible candidate to host a secondary body of unknown nature.
    • Using PARAS, scientists confirmed the secondary body as a planet, and it was named TOI 4603b or HD 245134b.
    • The exoplanet is located 731 light years away and orbits a sub-giant F-type star TOI4603 every 7.24 days.

    Note: An exoplanet, short for “extra-solar planet,” is a planet that orbits a star other than our Sun. These planets are located outside of our solar system and are not part of our planetary system.

    Unprecedented Density and Proximity

    • TOI 4603b is one of the most massive and densest giant planets discovered to date.
    • It orbits very close to its host star at a distance less than 1/10th the distance between our Sun and Earth.
    • Comparisons between the TOI-4603 star-planet system and the Sun-Mercury and Sun-Jupiter systems highlight the close proximity of TOI-4603 b to its star.
    • The exoplanet is situated more than 50 times closer to its star than Jupiter is to the Sun.
    • TOI-4603b is 13 times more massive than Jupiter.

    Utilization of Indigenous Technology

    • The discovery of this massive exoplanet was made using the indigenously made PRL Advanced Radial-velocity Abu-sky Search spectrograph (PARAS) at the 1.2 m telescope of PRL at its Gurushikhar Observatory in Mt. Abu.
    • The mass of the planet was measured precisely using PARAS.

    Uniqueness of the Discovery

    • The planet falls into the transition mass range of massive giant planets and low-mass brown dwarfs, with masses ranging from 11 to 16 times the mass of Jupiter.
    • Only fewer than five exoplanets are currently known in this mass range.
    • The rarity of such discoveries makes this finding significant.

    Insights into Formation and Evolution

    • The exoplanet has a surface temperature of 1670 K and is likely undergoing high-eccentricity tidal migration with an eccentricity value of approximately 0.3.
    • The detection of such systems provides valuable insights into the formation, migration, and evolution mechanisms of massive exoplanets.

    India’s Contribution to Exoplanet Discoveries

    • This marks the third exoplanet discovery by India and the PRL scientists using the PARAS spectrograph and the PRL 1.2m telescope.
    • Previous discoveries include K2-236b in 2018 and TOI-1789b in 2021.

     

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  • Innovations in Biotechnology and Medical Sciences

    Devastating Frog Disease: Chytridiomycosis

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Chytridiomycosis

    Mains level: Not Much

    frog

    Central Idea

    • A multinational study has recently published a breakthrough method in the journal Transboundary and Emerging Diseases to detect all known strains of the amphibian chytrid fungus.
    • This method will enhance our ability to detect and research the disease and work towards finding a widely available cure.

    Chytridiomycosis: The deadly frog disease

    • Chytridiomycosis, also known as chytrid, is a fungal disease that has been decimating frog populations worldwide for the past 40 years.
    • The disease has caused severe declines in over 500 frog species and led to 90 extinctions, making it the deadliest animal disease known.

    How does it infect?

    • Chytrid infects frogs by reproducing in their skin, damaging their ability to balance water and salt levels.
    • The mortality rate is extreme, and the disease has affected a high number of species, causing devastating declines and extinctions.
    • The disease originated in Asia and spread globally through amphibian trade and travel.

    Limitations in diagnosis

    • Researchers traditionally used swabs and quantitative polymerase chain reaction (qPCR) tests, similar to COVID-19 testing, to detect chytrid in frogs.
    • The existing qPCR test could not detect chytrid strains from Asia, limiting research efforts.

    New and Improved qPCR Test

    • Researchers in India, Australia, and Panama have developed a new qPCR test that can detect strains of chytrid from Asia.
    • The test is also more sensitive, allowing for the detection of low infection levels and expanding the range of species that can be studied.
    • The test can also detect a closely related species of chytrid that infects salamanders.

    Understanding natural immunity in frogs

    • Some amphibian species, even those without an evolutionary history with chytrid, do not become sick when carrying the fungus, indicating natural immune resistance.
    • Frog immunity is complex, involving anti-microbial chemicals, symbiotic bacteria, white blood cells, antibodies, and more.
    • Research in Asia, where chytrid declines have not been observed, may provide insights into how resistance evolves and aid in finding a cure for affected regions.

     

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  • International Space Agencies – Missions and Discoveries

    Shenzhou-16 successfully launches with 3 Astronauts to Space

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Shenzhou-16, Gaganyan

    Mains level: Manned missions to Space

    shenzhou

    Central Idea

    • China has achieved a successful launch of the Shenzhou-16 spacecraft carrying three astronauts to the Tiangong space station.

    What is Shenzhou-16?

    • Shenzhou-16 spacecraft is part of Chinese manned spaceflight missions and was designed to transport astronauts to the Tiangong space station.
    • This mission marks an important step in China’s space exploration efforts, with the crew set to conduct a range of tests and experiments during their five-month stay.
    • The Tiangong space station, operated by the China Manned Space Agency (CMSA), is an integral part of China’s ambitious space program and aims to be a hub for scientific research.

    Astronauts on Shenzhou-16

    • The crew of the Shenzhou-16 mission consists of three astronauts: Jing Haipeng as the leading commander, Zhu Yangzhu, and Gui Haichao.
    • Jing Haipeng is an experienced senior spacecraft pilot and one of China’s first batch of astronaut trainees.
    • Zhu Yangzhu, a postdoctoral fellow in aerodynamics and former university teacher, will serve as a spaceflight engineer.
    • Gui Haichao is the first Chinese civilian to travel to space and will be responsible for overseeing science experiments at the space station.

    Objectives of the Mission

    • The Shenzhou-16 crew will replace the previous crew from the Shenzhou-15 mission that has been aboard the Tiangong space station since November.
    • The new crew will carry out large-scale tests and experiments in various fields, including the study of quantum phenomena, high-precision space time-frequency systems, verification of general relativity, and the origin of life.
    • These scientific endeavors are expected to lead to significant achievements during the crew’s five-month stay.

    About the Tiangong Space Station

    • The Tiangong space station, operated by the CMSA, was developed by China after being barred from collaborating with NASA due to concerns of espionage.
    • The station’s first module entered orbit in 2021, with two more modules added subsequently.
    • China’s long-term plan is to expand the station, with the next module set to dock and create a cross-shaped structure.
    • The Tiangong space station aims to become a leading outpost for scientific research once the International Space Station’s operations conclude in 2030.

     

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  • Historical and Archaeological Findings in News

    Delhi’s Ancient Secrets: Recent Excavations at Purana Qila

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Findings at Purana Qila

    Mains level: Not Much

    purana qila

    Central Idea

    • Delhi’s Purana Qila, also known as the Old Fort, is a historic site with a rich and diverse past.
    • Recent excavations have shed light on its continuous history since the pre-Mauryan era.

    About Purana Qila

    • The origins of Purana Qila date back to antiquity, with the exact foundation period unknown.
    • It was later rebuilt by Sher Shah Suri and Mughal emperor Humayun.
    • The fort holds immense cultural and historical importance, and many believe it to be the site of Indraprastha mentioned in the Mahabharata.
    • The fort, believed to be the location of the ancient city of Indraprastha, showcases architectural remnants from various periods, including the Mughal and Rajput eras.

    Architectural marvels at Purana Qila

    • Purana Qila’s architectural features include walls that rise to a height of 18 meters, spanning approximately 1.5 kilometers.
    • It boasts three arched gateways, including the Bara Darwaza, the south gate (Humayun Gate), and the Talaqi Gate.
    • The fort’s Qila-i-Kuhna Mosque, built by Sher Shah Suri in 1541, showcases pre-Mughal architecture with its pointed arches and elegant prayer niches.
    • The Sher Mandal, a double-storeyed octagonal tower, served as Humayun’s private observatory and library.
    • It features decorative plaster-work and remnants of stone shelving for books.

    Recent excavation discoveries

    • Excavations have uncovered significant artifacts, including shards of Painted Gray Ware pottery dating from 1200 BC to 600 BC, indicating the pre-Mauryan period.
    • Other discoveries include a 900-year-old Vaikuntha Vishnu from the Rajput period, a terracotta plaque of Goddess Gaja Lakshmi from the Gupta period, and a 2,500-year-old terracotta ring well from the Mauryan period.
    • Numerous beads, seals, copper coins, and a bone needle have also been found, highlighting the site’s role as a center for trade activities.

    Cultural chronology and preservation

    • The ongoing excavation aims to establish a complete chronology of the site, spanning different historical periods from the Kushan to the Mughal era.
    • The remains of Purana Qila will be preserved, conserved, and transformed into an open-air museum to showcase the rich historical legacy of Delhi.
    • The excavated artifacts will also be displayed to delegates attending the G-20 summit, further promoting the cultural heritage of the site.

     

  • ISRO Missions and Discoveries

    ISRO successfully deploys NavIC NVS-1 Satellite

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: NAVIC

    Mains level: Indigenous GPS

    isro

    Central Idea

    • The Indian Space Research Organisation has successfully launched its fifth satellite of 2023.
    • A 2,232-kilogram satellite named NVS-1 was launched into space as part of the NavIC

    What is NAVIC?

    • NavIC is a regional satellite navigation system consisting of seven satellites in orbit that provide positioning, navigation, and timing services to various sectors, including civil aviation and the military.

    (1) Origins and Motivation:

    • The idea of NAVIC emerged in the early 2000s as IRNSS (Indian Regional Navigation Satellite System) to address India’s need for an independent navigation system for strategic and civilian purposes.
    • The motivation behind NAVIC was to reduce dependence on foreign systems like GPS and enhance national security, sovereignty, and economic growth.

    (2) Satellite Deployment:

    • The NAVIC constellation consists of a total of 7* satellites.
    • The first satellite, IRNSS-1A, was launched in July 2013, followed by subsequent launches of IRNSS-1B, 1C, 1D, 1E, 1F, and IRNSS-1I.
    • Each satellite is placed in a geostationary orbit or an inclined geosynchronous orbit, providing continuous coverage over the Indian landmass and surrounding regions.

    (3) Renaming to NAVIC:

    • In 2016, the system was officially named NAVIC, which stands for Navigation with Indian Constellation.
    • The name change aimed to create a distinct brand identity for the Indian regional navigation system.

    Key Features and Technical Details

    (1) Coverage Area:

    • NAVIC provides coverage within India and extends up to 1,500 kilometres beyond its borders.
    • The system covers the Indian landmass, as well as the Indian Ocean region.

    (2) Satellite Configuration:

    • The NAVIC satellites are equipped with atomic clocks to provide accurate timing signals.
    • They transmit signals on different frequencies, including L5 and S bands, for enhanced accuracy and reliability.

    (3) Applications and Services:

    • NAVIC has a wide range of applications, including terrestrial, aerial, and marine navigation.
    • It is utilized in various sectors such as transportation, agriculture, disaster management, surveying, and geodetic applications.
    • The system supports position determination, velocity measurement, and time synchronization services.

    About NVS-1 Satellite

    • NVS-1 is part of the second-generation NavIC satellite series and ensures continuity of existing services while introducing new services in the Li band.
    • The satellite features two solar arrays generating up to 2.4 kW of power, a lithium-ion battery for eclipse support, and thermal management and propulsion systems.
    • Notably, NVS-1 includes a Rubidium atomic clock developed in-house by the Space Applications Centre, showcasing India’s technical expertise in this advanced technology.

    India’s launch capabilities and recent missions

    • The NVS-1 launch marks the second successful mission in a month and the fifth launch of the year for ISRO.
    • In April, ISRO completed the PSLV-C55 mission, deploying two satellites, including TeLEOS-2 with a synthetic aperture radar payload.
    • The PSLV-C55 mission highlighted collaboration between India and Singapore in space exploration and technology.

    *Note: The numbers of satellites in this constellation is disputed. It is given as 7 and 8 on different sources. Total Nine satellites were launched out of which the very first (IRNSS-1A) is partially failed because of some issue in its Atomic Clock. Another and the last satellite had a launch failure. Hence the number 7/8.

     

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  • Parliament – Sessions, Procedures, Motions, Committees etc

    Parliamentary Institutions in Ancient India

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Tripitaka

    Mains level: Democracy in Indian Civilizations

    parliament

    Central Idea

    • The construction and history of the Indian Parliament building serve as a reminder of India’s rich democratic traditions.
    • Dr BR Ambedkar, the Chairman of the Drafting Committee for the Indian Constitution, highlighted the presence of democratic aspects in Indian history that predate Western influence.

    Democratic Traditions in Ancient India

    • Ambedkar had challenged the notion that India’s parliamentary procedures were borrowed from European countries.
    • Ambedkar referred to the Vinaypitaka, a Theravada Buddhist scripture, as evidence of existing democratic procedures in India.
    • The scripture regulated meetings of the Bhikkhus Sangh (monks) and included rules for debates, motions, and voting through a secret ballot system.

    Comparison with Western Democracies

    • Ambedkar acknowledged the importance of contributions made by Western democracies in moving away from autocracy and religious dominance.
    • He highlighted the separation of Church and State in Western societies and the transition to secular laws created by the people rather than divine or religious authorities.

    Caution against Failure to Address Defects

    • Ambedkar pointed out the tendency of ancient societies to neglect repairing their own defects, leading to their decay.
    • He criticized the Indian society’s reliance on divine laws established by figures like Manu and Yajnavalkya, which hindered the ability to address societal issues.

    Conclusion

    • While acknowledging India’s rich democratic history, it is essential to continue building and strengthening democratic institutions to address the evolving needs and challenges of society.
    • This includes fostering an introspective approach, embracing inclusive governance, and upholding the principles of secularism, equality, and social justice.

    Back2Basics: Tripitaka

    • The Tripitaka, also known as the Pali Canon, is a collection of sacred Buddhist scriptures that form the foundational texts of the Theravada Buddhist tradition.
    • It is divided into three sections, known as the Tripitaka, which literally means “Three Baskets.”

    History and significance

    • The Tripitaka was orally transmitted from the time of Gautama Buddha in the 5th century BCE until it was eventually written down in the 1st century BCE.
    • It holds immense historical and religious significance as it contains the teachings, discourses, rules, and guidelines given by the Buddha and his prominent disciples.

    Composition of the Tripitaka:

    (1) Vinaya Pitaka (Basket of Discipline):

    • Comprises the rules and guidelines for monastic discipline in the Buddhist community.
    • Provides detailed instructions on the conduct and behavior expected from monks and nuns.
    • Covers various aspects, including ethical guidelines, disciplinary codes, and procedures for resolving disputes.
    • Offers insights into the monastic life, the organization of the Sangha (monastic community), and the role of the monastic code in maintaining harmony and ethical conduct.

    (2) Sutta Pitaka (Basket of Discourses):

    • Contains the discourses and teachings delivered by Gautama Buddha and his close disciples.
    • Includes a vast collection of discourses covering a wide range of topics, such as ethics, meditation, philosophy, and social issues.
    • Consists of individual suttas (discourses) grouped into different collections or Nikayas, such as the Digha Nikaya (Long Discourses), Majjhima Nikaya (Middle-Length Discourses), Samyutta Nikaya (Connected Discourses), and Anguttara Nikaya (Numerical Discourses).
    • Presents the Buddha’s profound teachings on the Four Noble Truths, the Noble Eightfold Path, dependent origination, and other core concepts of Buddhism.

    (3) Abhidhamma Pitaka (Basket of Higher Teachings):

    • Provides a comprehensive and systematic analysis of Buddhist philosophy and psychology.
    • Explores the nature of mind, consciousness, and reality in intricate detail.
    • Presents the teachings in a more technical and analytical manner, offering an advanced understanding of Buddhist concepts.
    • Divided into seven books, known as the Abhidhamma books, which delve into topics such as consciousness, mental factors, elements, and the path to liberation.
    • Offers a deep exploration of the ultimate nature of existence and the workings of the mind.

    Features and Characteristics

    • Authenticity and Authority: The Tripitaka is regarded as the most authoritative and authentic collection of Buddhist scriptures in the Theravada tradition.
    • Canonical Language: The texts are primarily written in Pali, an ancient Indian language close to the language spoken during the Buddha’s time.
    • Extensive Coverage: The Tripitaka covers a wide range of topics, offering comprehensive guidance for practitioners in various aspects of life.
    • Preservation of Early Buddhist Teachings: The Tripitaka is believed to preserve the original teachings of the Buddha, providing insights into his wisdom and teachings.

     

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  • Innovations in Sciences, IT, Computers, Robotics and Nanotechnology

    What is Foucault Pendulum?

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Foucault Pendulum

    Mains level: NA

    pendulum

    Central Idea

    • The Foucault pendulum is a device that proves the Earth’s rotation and has been installed in the new Parliament building in New Delhi.
    • It was designed and installed by the National Council of Science Museums (NCSM), Kolkata.

    Foucault Pendulum: A Unique Invention

    • Historical Context: In 1851, the Foucault pendulum experiment conclusively demonstrated the Earth’s rotation, settling debates about the planet’s movement.
    • Leon Foucault: The French scientist invented the Foucault pendulum and invited scientists and the public to witness the Earth’s rotation through the experiment.
    • Working: The pendulum consists of a heavy iron ball suspended by a steel wire and swings in a plane, mimicking the Earth’s rotation on its axis.
    • Exhibition at the Pantheon: The demonstration took place at the Pantheon in Paris, where the ball’s motion represented the Earth’s rotation.

    Significance

    • Earth’s Rotation as a Scientific Fact: The Foucault pendulum experiment solidified the understanding that the Earth rotates on its axis.
    • Supporting Astronomical Studies: The knowledge of the Earth’s rotation is crucial for studying various astronomical phenomena, such as day and night cycles and seasonal changes.
    • Continual Scientific Inquiry: The Foucault pendulum experiment encouraged further research into the Earth’s rotation and its implications for our understanding of the universe.

    Modern Applications and Further Exploration

    • Educational Installations: The inclusion of a Foucault pendulum in the new Parliament building in New Delhi provides an opportunity for public education and scientific engagement.
    • Technological Advancements: Advances in technology, such as precision instruments and digital monitoring, can enhance the accuracy and impact of Foucault pendulum installations.
    • Continued Research: Ongoing scientific studies and experiments can deepen our understanding of the Earth’s rotation and its relationship to other celestial bodies.
    • Space Exploration: Exploring the Earth’s rotation from space can offer unique perspectives and insights into its dynamics.

     

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  • Police Reforms – SC directives, NPC, other committees reports

    What is Narco Analysis Test?

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: NARCO test

    Mains level: Not Much

    narco test

    Central Idea

    • Wrestlers at Jantar Mantar expressed their willingness to undergo narco analysis test.
    • One of them emphasized that the test should be monitored by the Supreme Court.

    What is a Narco Test?

    • In a ‘narco’ or narcoanalysis test, a drug called sodium pentothal is injected into the body of the accused.
    • This transports the accused to a hypnotic or sedated state, in which their imagination is neutralised.
    • In this hypnotic state, the accused is understood as being incapable of lying, and is expected to divulge information that is true.
    • Sodium pentothal or sodium thiopental is a fast-acting, short duration anaesthetic, which is used in larger doses to sedate patients during surgery.
    • It belongs to the barbiturate class of drugs that act on the central nervous system as depressants.

     Difference from Polygraph Tests

    • It is important to differentiate narco-analysis tests from polygraph tests, as they serve different purposes.
    • Polygraph tests rely on physiological responses to detect lies, measuring variables such as blood pressure, pulse rate, respiration, and sweat gland activity while the suspect is being questioned.
    • In contrast, narco-analysis tests induce a hypnotic state through the administration of drugs, aiming to weaken the subject’s resolve to lie.

    Reasons to use such tests

    • In recent decades, investigating agencies have sought to employ these tests in investigation, which are sometimes seen as being a “softer alternative” to torture or “third degree” to extract the truth from suspects.
    • However, neither method has been proven scientifically to have a 100% success rate, and remain contentious in the medical field as well.

    Restrictions on these tests

    • No self-incrimination: The Bench took into consideration international norms on human rights, the right to a fair trial, and the right against self-incrimination under Article 20(3) of the Constitution.
    • Consent of the accused: In ‘Selvi & Ors vs. State of Karnataka & Anr’ (2010), a Supreme Court Bench comprising then CJI ruled that no lie detector tests should be administered “except on the basis of consent of the accused”. The subject’s consent should be recorded before a judicial magistrate, the court said.
    • Legal assistance to such convicts: Those who volunteer must have access to a lawyer, and have the physical, emotional, and legal implications of the test explained to them by police and the lawyer.
    • Guidelines at place: It said that the ‘Guidelines for the Administration of Polygraph Test on an Accused’ published by the National Human Rights Commission in 2000, must be strictly followed.

    Previous Cases and Supreme Court Ruling

    • Narco analysis tests have been employed in significant cases like the 2002 Gujarat riots, the Abdul Karim Telgi fake stamp paper scam, the Nithari killings case in 2007, and the 26/11 Mumbai terror attack case involving Ajmal Kasab.
    • However, it was in 2010 that the Supreme Court delivered a ruling addressing the legality and admissibility of narco tests.
    • According to the Supreme Court ruling in “Selvi & Ors vs State of Karnataka & Anr” (2010), lie detector tests should not be administered without the consent of the accused.
    • The ruling emphasized that those who volunteer for the test must have access to legal counsel and be fully informed about the physical, emotional, and legal implications of the test.

    Court Decisions and Examples

    • The Supreme Court, relying on its 2010 ruling, rejected a petition to produce narco-test reports in the case of Aarushi Talwar, deeming it an attempt to delay the trial proceedings.
    • In 2019, the Central Bureau of Investigation (CBI) wanted to conduct narco-analysis tests on a former Punjab National Bank (PNB) staffer involved in an alleged fraud case, but the manager did not provide consent.
    • Last year, a Delhi court allowed a narco test on Aaftab Poonawalla, a murder suspect, after he voluntarily consented and acknowledged the potential consequences.

    Legal Position before Supreme Court Ruling

    • In 2006, the Madras High Court stated that scientific tests could be used by investigating agencies when the accused did not come forward with the truth, as it did not violate testimonial compulsion.
    • Similarly, the 2008 Delhi High Court ruling in “Sh. Shailender Sharma vs State & Another” acknowledged the need for thorough investigations and stated that narco-analysis tests do not suffer from constitutional infirmities.

    Can the results of these tests be considered as “confessions”?

    • Not a confession: Because those in a drugged-induced state cannot exercise a choice in answering questions that are put to them.
    • Assumed as evidence: However, any information or material subsequently discovered with the help of such a voluntarily-taken test can be admitted as evidence.
    • Supports investigation: It reveals the location of, say, a physical piece of evidence (which is often something like a murder weapon) in the course of the test.

    Way Forward

    • Evaluate the demand and implications of narco analysis tests in legal proceedings, considering both the benefits and ethical concerns.
    • Engage in a broader discussion on the forced intrusion into an individual’s mental processes and its impact on human dignity and rights.
    • Explore alternative methods of gathering evidence while ensuring constitutional rights are respected and upheld.

     

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  • ISRO Missions and Discoveries

    XPoSat: India’s first Polarimetry Mission

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: XPOSAT, Polarimetry

    Mains level: Not Much

    xposat

    Central Idea

    • The Indian Space Research Organisation (ISRO) is partnering with the Raman Research Institute (RRI) in Bengaluru to develop the X-Ray Polarimeter Satellite (XPoSat), set to launch later this year.

    What is XPoSat?

    • XPoSat aims to study various dynamics of bright astronomical X-ray sources in extreme conditions.
    • It is India’s first polarimetry mission and the world’s second, with NASA’s Imaging X-ray Polarimetry Explorer (IXPE) being the other major mission launched in 2021.
    • IXPE carries three state-of-the-art space telescopes to observe polarized X-rays from neutron stars and supermassive black holes, providing insights into the geometry and inner workings of the light source.

    XPoSat Payloads

    • XPoSat will carry two scientific payloads in a low Earth orbit.
    • The primary payload, POLIX, will measure the polarimetry parameters of X-rays, observing approximately 40 bright astronomical sources across different categories during the mission’s planned five-year lifetime.
    • The XSPECT (X-ray Spectroscopy and Timing) payload will provide spectroscopic information on how light is absorbed and emitted by objects, allowing observations of X-ray pulsars, black hole binaries, low-magnetic field neutron stars, and more.

    X-Rays in Space

    • X-rays in space have higher energy and shorter wavelengths, ranging from 0.03 to 3 nanometers.
    • X-rays are emitted by objects with temperatures in the millions of degrees Celsius, such as pulsars, galactic supernova remnants, and black holes.
    • Polarized light, consisting of organized moving electric and magnetic waves, plays a role in X-ray observations, and polarized lenses are used by fishermen to reduce glare from sunlight.

    Significance of Polarimetry

    • Polarimetry involves measuring the angle of rotation of the plane of polarized light as it passes through certain transparent materials.
    • XPoSat’s primary payload, POLIX (Polarimeter Instrument in X-rays), developed by RRI and UR Rao Satellite Centre, will measure the degree and angle of polarization in X-rays from astronomical sources.
    • The emission mechanisms of various astronomical sources are complex, and understanding them poses challenges that polarimetry can help address.

     

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