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Type: Prelims Only

  • Modern Indian History-Events and Personalities

    [pib] Durga Puja gets UNESCO Intangible Cultural Heritage tag

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Intangible Cultural Heritages in India

    Mains level: Not Much

    UNESCO has inscribed ‘Durga Puja in Kolkata’ on the Representative List of Intangible Cultural Heritage of Humanity.

    What is Intangible Cultural Heritage (ICH)?

    • ICH means the practices, representations, expressions, knowledge, skills – as well as the instruments, objects, artefacts and cultural spaces associated with them that communities, groups and, in some cases, individuals recognize as a part of their cultural heritage.
    • Furthermore, its importance is not in the cultural manifestation itself, but in the wealth of knowledge, know-how and skills that are transmitted from one generation to the next.

    About Durga Puja

    • Durga Puja, also known as Durgotsava or Sharodotsava, is an annual Hindu festival that reveres and pays homage to the goddess Durga.
    • It is an important festival in the Shaktism tradition of Hinduism.
    • It is celebrated because of Durga’s victory over Mahishasur.
    • It is particularly popular and traditionally celebrated in the Indian states of West Bengal, Bihar, Jharkhand, and Odisha among other states.
    • It is a ten-day festival, of which the last five are of the most significance.

    Citation for the UNESCO tag

    • The UNESCO Committee commended its initiatives to involve marginalized groups, and individuals as well as women in their participation in safeguarding the element.
    • The festival is also marked by scripture recitations, performance arts, revelry, gift-giving, family visits, feasting, and public processions.
    • Durga Puja not only is a celebration of the feminine divinity but is a consummate expression of dance, music, crafts, rituals, practices culinary and cultural aspects.
    • The festival transcends the boundaries of caste, creed and economic classes and joins the people together in its celebration.

    Also read: National List for Intangible Cultural Heritage (ICH)

    Other ICH in India

    • With the inscription of Durga Puja in Kolkata, India now has 14 intangible cultural heritage elements on the prestigious UNESCO Representative List of ICH of Humanity.
    • In recent years, the ICH elements that saw inscriptions are Kumbh Mela (inscribed 2017), Yoga (inscribed 2016) among others.
    • Also, India is a SIGNATORY of the 2003 UNESCO Convention which aims for the Safeguarding of the Intangible Heritage along with traditions and living expression.

     

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  • NPA Crisis

    Co-Lending Model for Banks-NBFCs

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: NBFCs

    Mains level: Co-Lending and associated issues

    A November 2020 decision by the RBI to permit banks to “co-lend with all registered NBFCs based on a prior agreement” has led to unusual tie-ups between the banks and companies.

     The ‘Co-Lending Model’

    • In September 2018, the RBI had announced “co-origination of loans” by banks and Non-Banking Financial Companies (NBFCs) for lending to the priority sector.
    • The arrangement entailed joint contribution of credit at the facility level by both the lenders as also sharing of risks and rewards.
    • Subsequently, based on feedback from stakeholders, the RBI allowed the lenders greater operational flexibility, while requiring them to conform to regulatory guidelines.
    • The primary focus of the revised scheme, rechristened as ‘Co-Lending Model’ (CLM), was to “improve the flow of credit to the unserved and underserved sector of the economy.

    Repercussions of Co-Lending

    (1) Bank-NBFC tie-ups at indiscriminate scale

    • Several banks have entered into co-lending ‘master agreements’ with NBFCs, and more are in the pipeline.
    • SBI, the country’s largest lender, signed a deal with Adani Capital, a small NBFC of a big corporate house, for co-lending to farmers to help them buy tractors and farm implements.

    (2) Greater risk in co-lending

    • NBFCs are required to retain at least a 20 per cent share of individual loans on their books.
    • This means 80 per cent of the risk will be with the banks — who will take the big hit in case of a default.

    (3) Corporates in banking

    • While the RBI hasn’t officially allowed the entry of big corporate houses into the banking space, NBFCs — mostly floated by corporate houses — were already accepting public deposits.
    • They now have more opportunities on the lending side through direct co-lending arrangements.

    Back2Basics: Non-Banking Financial Company (NBFC)

    • An NBFC is a company incorporated under the Companies Act 2013 or 1956.
    • According to section 45-I (c) of the RBI Act, a Non–Banking Company carrying on the business of a financial institution will be an NBFC.
    • It further states that the NBFC must be engaged in the business of Loans and Advances, Acquisition of stocks, equities, debt etc issued by the government or any local authority or other marketable securities.

    NBFC business:

    The NBFC business does not include business whose principal business is the following:

    1. Agricultural Activity
    2. Industrial Activity
    3. Purchase or sale of any goods excluding securities
    4. Sale/purchase/construction of any immovable property – Providing of any services

    Difference between Banks and NBFCs:

    • NBFCs lend and make investments and hence their activities are akin to that of banks; however there are a few differences as given below:
    1. NBFC cannot accept demand deposits;
    2. NBFCs do not form part of the payment and settlement system and cannot issue cheques drawn on itself;
    3. Deposit insurance facility of Deposit Insurance and Credit Guarantee Corporation is not available to depositors of NBFCs, unlike in the case of banks.

     

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  • Telecom and Postal Sector – Spectrum Allocation, Call Drops, Predatory Pricing, etc

    5G Network and Aviation Safety

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: 5G technology

    Mains level: Issues with 5g rollout

    The US Federal Aviation Administration (FAA) has issued directives to create a framework as well as gather more information about the potential effects of 5G on crucial aviation safety equipment.

    What is 5G technology?

    • 5G or fifth generation is the latest upgrade in the long-term evolution (LTE) mobile broadband networks.
    • It mainly works in 3 bands, namely low, mid and high-frequency spectrum — all of which have their own uses as well as limitations.

    Three bands of 5G

    • The low band spectrum has shown great promise in terms of coverage and speed of internet and data exchange, the maximum speed is limited to 100 Mbps (Megabits per second).
    • This means that while telcos can use and install it for commercial cellphones users who may not have specific demands for very high-speed internet, the low band spectrum may not be optimal for specialised needs of the industry.
    • The mid-band spectrum, on the other hand, offers higher speeds compared to the low band but has limitations in terms of coverage area and penetration of signals.
    • Telcos and companies, which have taken the lead on 5G, have indicated that this band may be used by industries and specialised factory units for building captive networks that can be moulded into the needs of that particular industry.
    • The high-band spectrum offers the highest speed of all the three bands, but has extremely limited coverage and signal penetration strength.
    • Internet speeds in the high-band spectrum of 5G have been tested to be as high as 20 Gbps (gigabits per second), while, in most cases, the maximum internet data speed in 4G has been recorded at 1 Gbps.

    What is the issue?

    • There is a threat of potential radar altimeter interference from 5G cellular in the 3700 MHz-3800 MHz frequency or the C-band.
    • The 3700-4200 MHz band is close to the 4200 MHz-4400 MHz range used by aircraft radio altimeters.

    Potential impacts

    • Operations by aircraft including large jets could be limited or prohibited from using certain landing and navigation systems in places where there is scope for potential interference from new 5G cellular networks.
    • The restrictions could be severe for smaller aircraft and helicopters.
    • Overall, these could result in flight cancellations, delays or diversions in 46 places where these towers are, according to an aviation report.

    What is the aircraft equipment that can be affected?

    • The radio altimeter measures height (not altitude) of the aircraft above the surface immediately below the plane. It transmits a radio signal directly below.
    • There are various other systems that depend on inputs from the radio altimeter — for example, predictive wind shear, ground proximity warning system, traffic collision avoidance system, and auto land.
    • These effects are only when the aircraft is close to the ground, i.e. up to 2,500 ft above ground level (depending on the aircraft make).
    • Any disturbance to internal radio altimeter readings caused by 5G or other equipment transmitting in frequency bands close to it can result in disastrous effects on crucial systems during approach/landing.

    Impact of mobile phones

    • 5G devices can interfere with aircraft altitude instruments and recommended that they should be turned off (or put to flight mode) during flight.
    • Experts believe that electrical interference from a mobile phone could have been a factor in the crash of a small aircraft.
    • The navigation system of the small aircraft could be disrupted by mobile phone signals.
    • But up until now, there has been no evidence of a mobile phone having caused a crash.

    What about the implications for India?

    • Pilots in India are aware of the implications of 5G in the country.
    • However, in India, 5G could be rolled out in the 3.2 GHz-3.6 GHz band, which may not have the potential to interfere with aircraft operations.

     

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  • Innovations in Biotechnology and Medical Sciences

    What are Chaperone Proteins?

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Chaperone Protein

    Mains level: NA

     

    Chaperones are a functionally related group of proteins assisting protein folding in the cell under physiological and stress conditions.

    What are Chaperones?

    • DNA is a linear chain of nucleotides, portions of which are faithfully transcribed into linear messenger RNA.
    • The message in this RNA is translated into strings of amino acids – proteins.
    • Proteins need to take a precise three-dimensional shape to become functional entities.
    • This protein folding does not happen all by itself, at least most of the time.
    • A special bunch of proteins called molecular chaperones assist in correctly folding the protein.

    Functions of chaperone proteins

    • In biological systems, Chaperones play crucial roles.
    • Many molecular chaperones belong to the class of “heat shock” proteins (or stress-response proteins).
    • This is because whenever an organism is subjected to elevated temperatures – a heat shock – proteins in the system begin to lose their native shapes, and chaperones are produced in large quantities to restore order.

    General need of chaperones

    Chaperones are needed under physiological conditions too, for normal cellular function since misfolding of proteins can cause a number of diseases.

    • Alpha-synuclein protein, present in neurons, is wrongly folded in Parkinson’s disease.
    • Brains of Alzheimer’s patients have plaques formed from aggregates of amyloid beta-peptide.
    • This accumulation of amyloid fibrils is toxic, leading to widespread destruction of neurons – a ‘neurodegenerative’ disorder.
    • Aberrant folding of crystallins of the eye lens leads to cataracts.

    Types of Chaperones

    • Major chaperones in humans include HSP70, HSC70 and HSP90: the numbers express the size of the proteins in kilodaltons.
    • In normal cells 1%–2% of all proteins present are heat shock proteins.
    • This number rises threefold during stressful conditions.

    HSC70: The molecular thermometer

    • HSC70 appears to be more like a molecular thermometer, with an ability to sense cold temperatures.
    • It is induced by heat, whereas HSC70 is always present at high levels in normal cells.
    • This knowledge comes from the study of an intriguing set of disorders, exemplified by Familial Cold Autoinflammatory Syndrome (FCAS).

    HSC70 and HSP90: Role in Cancer

    • Cancer cells divide at a break-neck pace, and heat shock proteins are very important in maintaining the stressful cancerous state.
    • An overabundance of heat shock proteins in cancer cells is an indicator of a poor prognosis. Cancerous cells accumulate mutations in proteins that would normally suppress tumours.
    • HSP70 and HSP90 play the roles of villains, as they continue to fold the mutated proteins, thus allowing tumor progression.

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  • Water Management – Institutional Reforms, Conservation Efforts, etc.

    Radioactive Pollution in Water

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Raidioactivity

    Mains level: Water Pollution

    Radioactive pollution of water is newly emerging but is of grave concern for water pollution and human health.

    Quick recap: Radioactivity

    • Radioactivity is the phenomenon of spontaneous emission of particles or waves from the unstable nuclei of some elements.
    • There are three types of radioactive emissions: Alpha, Beta and Gamma.
    • Alpha particles are positively charged He atoms, beta particles are negatively charged electrons and gamma rays are neutral electromagnetic radiations.
    • Radioactive elements are naturally found in the earth’s crust.

    Radioactive contamination of Water

    • Natural: Percolation of naturally occurring radioactive materials (NORM) from the soil sediments to the aquifer causes groundwater contamination.
    • Man-made: Anthropogenic sources of such pollution include- nuclear weapon investigation, nuclear calamities, nuclear powerhouses and dumping of radioactive waste.

    Various contaminant elements

    • Uranium, thorium and actinium are three NORM series that contaminate water resources.
    • A number of radionuclides are found in surface and subsurface waters, among which 3H, 14C, 40K, 210Pb, 210Po, 222Rn, 226Ra, 228Ra, 232Th and 234,235,238U are common.
    • Strontium-90, Caesium-137, etc are also formed by nuclear reactors, along with numerous unnecessary radioisotopes wastes.
    • 40K and 7Be are the most commonly found radioactive elements in the sludge generated in sewage treatment plants.
    • Nuclear reactors produce radioisotopes (Cobalt-60, Iridium-192, etc) that hand out as sources of gamma radiation in radiotherapy and numerous industrial appliances.

    Oceanic sources

    • Oceans and seas are the natural repositories of naturally occurring uranium. It is found in the form of uranyl carbonate ion.
    • A significant concentration of uranium is supposed to be found in the greater salinity of the marine water.
    • 40K (Radioactive Potassium) is also found in considerable concentration in the marine environment.

    Measuring radioactive pollution

    • Radioactivity is measured in Becquerel (SI unit) or in Curie.
    • Energy absorbed per unit mass is measured by Gray, while the unit Sievert measures the quantity of radiation absorbed by human tissues.
    • A small amount of radiation is found in all types of water but the extended amount of radiation is harmful to human health.
    • Radioactivity in drinking water can be determined by a gross alpha test.

    Hazards of such pollution

    • Radioactive elements have an effect on the environment and can cause a risk to human healthiness if inhaled, injected or exposed.
    • Human tissues absorb radiation through polluted water and foodstuff, which can cause serious health risks.
    • High doses of radiation can cause acute radiation syndrome or cutaneous radiation injury.
    • Exposure to radiation causes various disorders in human physiology, including cancer, leukaemia, genetic mutations, osteonecrosis, cataracts and chromosomal disruption.

     

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  • International Space Agencies – Missions and Discoveries

    NASA’s Imaging X-Ray Polarimetry Explorer (IXPE) Mission

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: IXPE

    Mains level: Not Much

    NASA has launched a new mission named Imaging X-ray Polarimetry Explorer or IXPE.

    About IXPE

    • IXPE observatory is a joint effort of NASA and the Italian Space Agency.
    • The mission will study “the most extreme and mysterious objects in the universe – supernova remnants, supermassive black holes, and dozens of other high-energy objects.”
    • The mission’s primary length is two years and the observatory will be at 600 kilometers altitude, orbiting around Earth’s equator.
    • IXPE is expected to study about 40 celestial objects in its first year in space.

    What are the instruments onboard?

    • IXPE carries three state-of-the-art space telescopes.
    • Each of the three identical telescopes hosts one light-weight X-ray mirror and one detector unit.
    • These will help observe polarized X-rays from neutron stars and supermassive black holes.
    • By measuring the polarization of these X-rays, we can study where the light came from and understand the geometry and inner workings of the light source.
    • This new mission will complement other X-ray telescopes such as the Chandra X-ray Observatory and the European Space Agency’s X-ray observatory, XMM-Newton.

    Why is it important?

    The mission will help scientists answer questions such as:

    • How do black holes spin?
    • Was the black hole at the center of the Milky Way actively feeding on surrounding material in the past?
    • How do pulsars shine so brightly in X-rays?
    • What powers the jets of energetic particles that are ejected from the region around the supermassive black holes at the centers of galaxies?

     

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  • River Interlinking

    [pib] Saryu Nahar National Project

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Sarayu River

    Mains level: River interlinking and associated issues

     

    PM will inaugurate the Saryu Nahar National Project.

    Saryu Nahar National Project

    • The Project involves the interlinking of five rivers – Ghaghara, Saryu, Rapti, Banganga and Rohini to ensure optimum usage of water resources of the region.
    • It will benefit nine districts of Eastern Uttar Pradesh namely – Bahraich, Shravasti, Balrampur, Gonda, Siddharthnagar, Basti, Sant Kabir Nagar, Gorakhpur and Maharajganj.
    • The sub canals with a length of 6,600km have been linked to the 318km main canal.
    • The work on the project started in 1978 but due to lack of continuity, it got delayed and was not completed even after nearly four decades.

    Benefits offered

    • The project will provide assured water for irrigation of over 14 lakh hectares of land and benefit about 29 lakh farmers of over 6200 villages.
    • The farmers of the region, who were the worst sufferers of the inordinate delay in the project, will now immensely benefit from the upgraded irrigation potential.
    • They will now be able to grow crops on a larger scale and maximize the agri-potential of the region.

    Back2Basics: Sarayu River

    • The Sarayu is a river that originates at a ridge south of Nanda Kot mountain in Bageshwar district in Uttarakhand.
    • It flows through Kapkot, Bageshwar, and Seraghat towns before discharging into the Sharda River at Pancheshwar at the India—Nepal border.
    • Lower Ghaghara is also popularly known as Sarayu in India.
    • Especially while it flows through the city of Ayodhya, the birthplace of legendary Rama.

     

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  • Capital Markets: Challenges and Developments

    What are Non-convertible Debentures?

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Non-convertible Debentures

    Mains level: Not Much

    Several companies have announced public issues to raise funds through non-convertible debentures.

    What are Debentures?

    • Debentures are long-term financial instruments issued by a company for specified tenure with a promise to pay fixed interest to the investor.
    • They can be held by individuals, banking companies, primary dealers other corporate bodies registered or incorporated in India and unincorporated bodies.
    • Their types include:
    1. Convertible debentures (CDs): They are a type of debentures that can be converted into equity shares of the company.
    2. Non-convertible debentures (NCDs): They are defined as the type of debentures that cannot be converted into equity shares of the company.

    What are NCDs?

    • Some debentures have a feature of convertibility into shares after a certain point of time at the discretion of the owner.
    • The debentures which can’t be converted into shares or equities are called non-convertible debentures (or NCDs).
    • They are debt financial instruments that companies use to raise medium- to long-term capital.

    Benefits offered by NCDs

    • At a time when fixed deposit rates are in low single digits, these NCD offerings look lucrative.
    • NCDs offer interest rates between 8.25–9.7%.

    Risks posed

    • Although NCDs are generally considered safe fixed-income instruments, some recent defaults have made investors cautious.
    • NCDs can be either secured by the issuer company’s assets, or unsecured.
    • Certain issuers, with credit rating below investment grade, had in the past issued both a secured NCD and another unsecured one through the same offer document, with different credit ratings.
    • The risk is high in the case of unsecured NCDs, even though they offer high-interest rates.
    • Credit rating of the issuer is a key factor to consider before investing in any NCD.

     

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  • Wildlife Conservation Efforts

    Ambergris: The Floating Gold

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Ambergris

    Mains level: Not Much

    The Crime Branch in Pune and seized 550 grams of ambergris, also known as ‘floating gold’.

    What is Ambergris?

    • Ambergris, which means gray amber in French, is a waxy substance that originates from the digestive system of the protected sperm whales.
    • It is incorrectly referred to as ‘whale vomit’.
    • It is produced in the gastrointestinal tract of some of the sperm whales for the passage of hard, sharp objects that are ingested when the whale eats large quantities of marine animals.

    Why is it so expensive?

    • Investigating agencies from across India who have seized ambergris in the recent past estimate its value to be somewhere between Rs 1 to 2 crores per kilogram, depending on the purity and quality.
    • Being extremely rare contributes to its high demand and high price in the international market.

    Its uses

    • Traditionally, ambergris is used to produce perfumes that have notes of musk.
    • While there are records of it being used to flavor food, alcoholic beverages and tobacco in some cultures in the past, it is rarely used for these purposes presently.

    Legalities and recent cases of seizure in India

    • While there is a ban on possession and trade of ambergris in countries like the USA, Australia and India, in several other countries it is a tradable commodity.
    • In the Indian context, the sperm whales are a protected species under Schedule 2 of the Wildlife Protection Act, 1972 and possession or trade of any of its by-products, including Ambergris is illegal.
    • It has been observed that the gangs smuggling the ambergris procure it from coastal areas and ship it to destination countries via some other countries with whom India has comparatively less stringent sea trade.

     

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  • Modern Indian History-Events and Personalities

    Significance of Raigad Fort in Maratha History

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Raigad Fort

    Mains level: Not Much

     

    President Ram Nath Kovind is commencing his visit to Maharashtra by visiting the Raigad Fort where he will pay tribute to Chhatrapati Shivaji Maharaj.

    Where is Raigad fort located?

    • Raigad is a hill fort situated about 25 km from Mahad in the Raigad district and stands 2,851 feet above sea level.
    • The British Gazette states the fort was known to early Europeans as the Gibraltar of the East.
    • Its decisive feature is a mile and a half flat top which has adequate room for buildings.
    • In its prime, the fort had 300 stone houses and a garrison of 2,000 men.

    When was it built?

    • The fort, which was earlier called Rairi, was the seat of the Maratha clan Shirke in the 12th century.
    • The fort changed hands a number of times from the dynasty of Bahaminis to the Nizamshahis and then the Adilshahis.
    • In 1656, Chhatrapati Shivaji captured it from the More’s of Javli who were under the suzerainty of the Adilshahi Sultanate.
    • The fort not only helped Shivaji challenge the supremacy of the Adilshahi dynasty but also opened up the routes towards Konkan for the extension of his power.

    Significance of the fort in Shivaji’s life

    • In 1662, Shivaji formally changed the fort’s name to Raigad and added a number of structures to it.
    • By 1664, the fort had emerged as the seat of Shivaji’s government.
    • As the Marathas under the leadership of Shivaji gained strength in their struggle against the Mughals, the announcement of a sovereign, independent state was made.
    • On June 6, 1674, Shivaji was coronated at Raigad by Gagabhatt where he took on the title of Chhatrapati.
    • Six years later, Shivaji passed away in Raigad in 1680 and has been cremated at the fort.

    Importance of Raigad Fort in Maharashtra’s polity

    • Chhatrapati Shivaji is the tallest and the most revered icon in Maharashtra and there is a constant attempt by political parties of all hues to appropriate his legacy.
    • Due to the significance of Raigad in his life, many political leaders make it a point to visit the fort.
    • Maharashtra has already announced a mid-sea memorial in the Arabian Sea for the Maratha warrior king.

     

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