💥Join UPSC 2027,2028 Mentorship (July Batch) + XFactor Notes & Microthemes PDF
Talk to Mentor

Civilsdaily

Login

Type: Prelims Only

  • 15th Century Copper Plates from the Vijayanagara Empire discovered

    Why in the News?

    A set of copper plates from the early 15th Century, dating back to the reign of Devaraya I of the Sangama Dynasty, were recently unveiled by the Archaeological Survey of India (ASI).

    About the Sangama Dynasty 

    • The Sangama Dynasty was the first ruling dynasty of the Vijayanagara Empire, founded in the 14th century by brothers Harihara I and Bukka Raya I.
    • They were the sons of Bhavana Sangama, a chieftain from a pastoralist community with Yadava descent.
    • The Sangama Dynasty was established in 1336 CE by Harihara I and Bukka Raya I, who founded the city of Vijayanagara on the south bank of the Tungabhadra River.
    • The early rulers focused on building the foundations of the empire, both administratively and culturally.

    Notable Rulers

    • Harihara I: Known for founding the empire and laying its initial foundations.
    • Bukka Raya I: Expanded the empire’s territories significantly, ruling from 1343 to 1379 CE.
    • Harihara II: Conquered coastal Andhra and important Indian ports like Goa, continuing his predecessor’s expansion.
    • Deva Raya I: Ruled from 1404 to 1422 CE, further expanding the empire.
    • Deva Raya II (Krishnadeva Raya): Regarded as one of the greatest rulers of the dynasty, he expanded the empire and promoted art, literature, and diplomacy from 1422 to 1446 CE.

    Downfall

    • Internal conflicts, particularly succession disputes, and external pressures from the Bahmani Sultanate and neighboring kingdoms weakened the dynasty.
    • The final blow came when Narasimha of the Saluva Dynasty usurped the throne in 1485 CE, marking the end of the Sangama Dynasty’s reign.

    Key Features of the Copper Plates

    • These plates are unique, dating back to the coronation of King Devaraya I of the Vijayanagara Empire.
      • The king granted the village of Gudipalli, along with the hamlets Rajendramada and Udayapalli, during his coronation.
      • The village was renamed Devarayapura-agrahara and divided into 61 shares allocated to various Brahmins with expertise in Vedas and Shastras.
    • They are written in Sanskrit, Kannada and Nagari characters.
    • The seal features an image of Vamana, rather than the usual Varaha (boar), which is the royal insignia of the Vijayanagara Empire.

    Historical Significance:

    • Dated to Saka 1328 (November 5, 1406 CE), the plates provide insights into the Sangama Dynasty.
    • It helps trace the lineage from Chandra, Yadu, and Sangama to the five sons of King Harihara: Harihara, Kampa, Bukka, Mãrapa, and Muddapa.
    [UPSC 2023] Who among the following rulers of Vijayanagara Empire constructed a large dam across Tungabhadra River and a canal-cum-aqueduct several kilometres long from the river to the capital city?

    (a) Devaraya I (b) Mallikarjuna (c) Vira Vijaya (d) Virupaksha

     

  • What is the Green Credit Programme?

    Why in the News?

    The Green Credit Programme (GCP), launched by the Ministry of Environment, Forest and Climate Change in 2023, was questioned by the Ministry of Law and Justice regarding the legality of its business model.

    About the Green Credit Programme (GCP)

    • The GCP launched by the MoEFCC in 2023, is a government initiative aimed at encouraging voluntary participation in environmental activities.
    • It was launched officially in December 2023 by PM Narendra Modi and Sheikh Mohammed bin Zayed Al Nahyan at the UN climate conference in Dubai.
    • Participants, including individuals, companies, and industries, can earn green credits for actions such as tree plantation, water conservation, waste management, and others.
    • These credits can be traded on a domestic platform, helping participants meet sustainability targets or fulfill legal obligations.
    • It is managed by the Indian Council of Forestry Research and Education (ICFRE), an autonomous organization under the MoEFCC.
    • The program supports the Mission LiFE (Lifestyle for Sustainable Environment) and encourages a market-based approach to environmental action.

    Criticisms of the Program:

    • Forest Diversion Concerns: The GCP has been criticized for promoting forest diversion for industrial activities. Critics argue that trading compensatory afforestation credits could weaken forest protection efforts and lead to the loss of old-growth forests.
    • Impact on Ecologically Valuable Lands: Concerns have been raised about plantations on degraded lands and scrublands, which provide essential ecological services. Critics argue these areas should not be used for plantations with uncertain long-term benefits.
    • Plantation Survival Issues: There are concerns about the survival rate of trees planted under the GCP, with some questioning if these plantations can truly replicate the environmental value of mature forests.
    • Compensatory Afforestation Conflicts: The GCP’s exchange of plantation credits for compensatory afforestation is seen as a challenge to the Van Adhiniyam, 1980, which mandates non-forest land for afforestation rather than degraded forest land.
    [UPSC 2009] In the context of C02 emission and Global Warming, what is the name of a market driven device under the UNFCC that allows developing countries to get funds/incentives from the developed countries to adopt, better technologies that reduce greenhouse gas emissions?

    (a) Carbon Footprint (b) Carbon Credit Rating (c) Clean Development Mechanism (d) Emission Reduction Norm

     

  • RBI celebrates 90 years

    Why in the News?

    The first monetary policy of RBI Governor Sanjay Malhotra in 2025 marks 90 years since the Reserve Bank of India (RBI) announced its inaugural monetary policy in 1935.

    RBI’s First Monetary Policy in 1935

    • On July 3, 1935, RBI set the bank rate at 3.5%, reflecting the Imperial Bank’s rate.
    • The CRR was set at 5% of demand liabilities and 2% of time liabilities on July 5, 1935.

    Evolution of RBI’s Monetary Policy

    • Bank Rate in Early RBI History:
      • The bank rate was a key tool introduced by the RBI in 1935 to control credit and liquidity. On July 3, 1935, the RBI set the bank rate at 3.5%, mirroring the rate of its predecessor, the Imperial Bank of India.
      • The RBI Act (1934) mandated its use for buying or re-discounting commercial paper, and it played a crucial role in India’s interest rate structure.
    • Role of Cash Reserve Ratio (CRR):
      • The CRR, introduced by the RBI, required banks to maintain a percentage of their deposits as reserves.
      • Influenced by the Federal Reserve Act of the USA, the CRR helped stabilize the banking system, especially during failures.
      • The CRR was set at 5% for demand liabilities and 2% for time liabilities in 1935, with adjustments made over time.
    • Exchange Rate Management
      • In 1935, the RBI managed the exchange rate of the 1 Indian rupee at 1 shilling and 6 pence.
      • This caused friction between nationalists, who favoured a lower exchange rate to boost exports, and the British, who preferred a higher rate to facilitate cheaper imports.
    • Disputes Between Government and RBI
      • The RBI’s decision to reduce the bank rate in 1935 was opposed by the government, fearing rupee depreciation.
      • This led to a conflict, resulting in the resignation of Osborne Smith, the first RBI Governor.
      • The incident highlighted tensions between the RBI’s monetary autonomy and government priorities.

    About Reserve Bank of India (RBI)

    • The RBI is the central bank and monetary authority of India established on April 1, 1935, under the Reserve Bank of India Act, 1934.
    • Its idea was incepted from the recommendations of the Hilton Young Commission.
    • Sir Osborne Arkell Smith, an Australian, served as the inaugural Governor.
    • He was succeeded by Sir C D Deshmukh, the first Indian to hold the position.
    • It is a centralized institution for India to effectively regulate its monetary and credit policies.
    • RBI had its initial headquarters in Kolkata, later moving permanently to Mumbai in 1937.
    • Initially, the RBI operated as a privately owned entity until its full nationalization in 1949.

    Functions and Initiatives:

    • Monetary Authority: The RBI controls the supply of money in the economy to stabilize exchange rates, maintain a healthy balance of payment, and control inflation.
    • Issuer of Currency: Sole authority to issue currency and combat circulation of counterfeit notes.
    • Banker to the Government: Acts as a banker to both the Central and State governments, providing short-term credit and financial advisory services.
    • Lender of Last Resort: Provides emergency liquidity assistance to banks during crises.
    • Custodian of Foreign Exchange Reserves: Manages foreign exchange reserves and administers the Foreign Exchange Management Act, 1999 (FEMA).
    • Regulator and Supervisor of Payment and Settlement Systems: Oversees payment and settlement systems in the country, ensuring efficiency and security.
    • Credit Control and Developmental Role: Promotes credit availability to productive sectors and fosters financial infrastructure development.

    Dr. Ambedkar’s Role in the Establishment of RBI:

    • Dr. B.R. Ambedkar’s contributions were particularly notable during the Hilton Young Commission discussions in 1926, where he presented his recommendations based on his book “The Problem of the Rupee – Its Origin and Its Solution.”
    • These discussions laid the foundation for establishing the RBI on April 1, 1935.

     

    [UPSC 2004] Consider the following statements:

    1. Reserve Bank of India was nationalized on 26 January 1950.

    2. The borrowing programme of the Government of India is handled by the Department of Expenditure, Ministry of Finance.

    Which of the statements given above is/are correct?

    (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2

     

  • Majorana 1 Chip and the Pursuit of Quantum Computing

    Why in the News?

    In December 2024, Microsoft introduced its quantum computing chip, Majorana 1, designed to solve industrial-scale problems by utilizing the properties of Majorana particles for practical quantum computing.

    About Majorana 1 Chip and the Science Behind

    • Microsoft introduced its Majorana 1 quantum computing chip, designed to solve large-scale problems using quantum computing.
    • This chip is named after Majorana particles, which have unique properties in particle physics.
    • Majorana particles are special because they are their own anti-particles.
    • This means that when two Majorana particles meet, they destroy each other and release energy.
    • This property is different from most particles, like electrons, which have separate anti-particles (for example, the electron’s anti-particle is the positron).
    • Why Majorana Particles Matter for Quantum Computing?
      • This unique property could make Majorana particles useful in quantum computing.
      • They could help make quantum bits (qubits) more stable, which is important for improving quantum computers.
      • Using Majorana particles may also help in topological quantum computing, which makes qubits less affected by external disturbances, making them more reliable.

    Beta Decay and Neutrinoless Double Beta Decay (0vßß):

    • Beta decay happens when an unstable atomic nucleus releases energy. In this process, a neutron in the nucleus turns into a proton, and an electron and anti-neutrino are emitted. There are two types of beta decay:
    1. Beta-minus decay: A neutron becomes a proton, releasing an electron and an anti-neutrino.
    2. Beta-plus decay: A proton turns into a neutron, releasing a positron and a neutrino.
    • What is Neutrinoless Double Beta Decay (0vßß)? Neutrinoless double beta decay is a rare event where two electrons are emitted instead of the usual electron and anti-neutrino. This suggests that neutrinos and anti-neutrinos might be the same particle, known as Majorana particles.
      • If scientists observe this type of decay, it will prove that neutrinos are Majorana particles and help measure their mass.
      • This discovery would improve our understanding of particle physics.

    AMoRE Experiment:

    • The AMoRE experiment is being conducted in South Korea to detect this rare 0vßß decay.
    • The experiment uses molybdenum-100 (Mo-100), which is known to undergo double beta decay. The team is measuring the energy differences in electron emissions to detect the 0vßß decay.
    • While no evidence has been found yet, the experiment continues to improve its sensitivity by using 100 kg of Mo-100 for more accurate measurements.

    Scientific Significance:

    • The search for 0vßß and studying Majorana particles could help answer important questions about the mass of neutrinos and improve our understanding of particle physics.
    • Learning more about neutrinos is key to both advancing quantum computing and understanding particle physics.
    [UPSC 2022] Which one of the following is the context in which the term “qubit” is mentioned?

    (a) Cloud Services (b) Quantum Computing (c) Visible Light Communication Technologies (d) Wireless Communication Technologies

     

  • Fram2 Polar-Orbiting Mission

    Why in the News?

    SpaceX has launched the Fram2 mission, sending four private astronauts on a groundbreaking journey to orbit Earth from pole to pole, marking a major milestone in space tourism.

    About the Fram2 Polar-Orbiting Mission

    • The Fram2 mission is a spaceflight undertaken by SpaceX, featuring a crew of four private astronauts.
    • The mission is named after the Fram ship, a historical vessel used in early 20th-century polar expeditions.
    • Unlike traditional space missions, Fram2 is designed to fly from pole to pole, completing an orbital journey around Earth that no human has attempted before.
    • Its goal is to fly over both the North and South Poles, providing an unprecedented opportunity to observe these regions from low-Earth orbit.
    • The mission will involve a series of scientific experiments focused on spaceflight and the effects of microgravity on the human body.
    • The mission is scheduled to last between three to five days, with the astronauts aboard the Crew Dragon spacecraft completing each orbit in about 46 minutes.

    Features and Significance:

    • Unique Orbital Path:
      • Unlike traditional orbits closer to the equator, the Fram2 mission follows a polar trajectory, covering Earth’s poles.
      • This approach requires more fuel and presents a unique challenge in terms of mission logistics, making the Fram2 flight one of the most ambitious private space missions to date.
    • Scientific Research:
      • The crew will participate in 22 experiments, including studies on microgravity’s impact on the human body, the effects of spaceflight on muscle loss and bone density, and X-ray imaging in space.
      • Additionally, the mission will gather data crucial for climate change research by focusing on Earth’s polar regions, which play a vital role in understanding global environmental changes.
    • Climate Change Research:
      • As part of the mission, astronauts will be able to film and observe Earth’s polar regions, contributing valuable data to climate science.
    [UPSC 2010] Consider the following statements:

    The Satellite Oceansat-2 launched by India helps in

    1. estimating the water vapour content in the atmosphere.

    2. predicting the onset of monsoons.

    3. monitoring the pollution of coastal waters.

    Which of the statements given above is/are correct?

    (a) 1 only (b) 2 and 3 only (c) 1 and 3 only (d) 1, 2 and 3

     

  • IISc’s Bacteria-Based Technique for Lunar Habitat Construction

    Why in the News?

    Researchers at the Indian Institute of Science (IISc.) have developed a bacteria-based technique to repair bricks used in lunar habitats, designed to withstand the harsh conditions of the moon’s environment.

    About the Bacterial Brick:

    • The bacterial brick is an innovative material designed for building durable, eco-friendly structures in lunar habitats.
    • It is created using lunar soil simulants combined with Sporosarcina pasteurii, a bacteria that binds soil particles together, forming a solid material suitable for construction on the moon.
    • How is it made?
      • The bacteria Sporosarcina pasteurii converts urea and calcium into calcium carbonate crystals, which bind soil particles together to create a brick-like substance.
      • The process is further enhanced with guar gum, which serves as a natural adhesive, making it a low-cost, eco-friendly alternative to energy-intensive cement-based manufacturing.
      • The researchers also explored sintering, where a mixture of soil simulants and polyvinyl alcohol is heated to high temperatures, creating stronger, more pressure-resistant bricks.

    Significance for Lunar Surface Conditions:

    • The moon’s surface experiences extreme temperature fluctuations, ranging from 121°C to -133°C, causing bricks to crack and become brittle.
    • A bacteria-based repair technique using Sporosarcina pasteurii helps address these cracks.
      • When mixed with lunar soil simulant and guar gum, the bacteria effectively adhere to cracks, improving durability and enabling the bricks to withstand temperatures from 100°C to 175°C.
    • This approach offers a sustainable solution by allowing on-site construction with local lunar materials, reducing the need for Earth-based materials.
      • It ensures long-term structural integrity for lunar habitats, contributing to the sustainability of space missions.
    [UPSC 2011] Microbial fuel cells are considered a source of sustainable energy. Why?

    1. They use living organisms as catalysts (often including bacteria) to generate electricity from certain substrates.

    2. They use a variety of inorganic materials as substrates.

    3. They can be installed in wastewater treatment plants to cleanse water and produce electricity.

    (a) 1 only (b) 2 and 3 only (c) 1 and 3 only (d) 1, 2 and 3

     

  • Mahabodhi Temple, Gaya 

    Why in the News?

    Since February 2025, Buddhists across India have been protesting, demanding the repeal of the Bodh Gaya Temple Act (BTA), 1949.

    Mahabodhi Temple, Gaya 

    Controversy surrounding the Bodh Gaya Temple Act (BTA), 1949:

    • The BTA was enacted after disputes between the Hindu and Buddhist communities regarding control of the temple.
    • Prior to this, the temple was under Hindu control, especially after the Mughal Empire in 1590 and following the Pala decline.
    • The BTA created an 8-member management committee for the temple with equal representation from Hindus and Buddhists.
    • However, the District Magistrate (usually from the Hindu community) was the ex-officio chairperson, giving Hindus a majority.
    • This has been a point of contention for the Buddhist community, leading to calls for reform.
    • The Supreme Court petition filed by monks in 2012 is yet to be heard, further fuelling their cause.

    About the Mahabodhi Temple:

    Details
    About
    • Bodh Gaya, Bihar, 96 km from Patna, 15 km from Gaya
    • The temple marks the spot where Gautama Buddha attained enlightenment under the Bodhi Tree in 531 BCE.
    • Designated in 2002 for its religious, historical, and architectural importance.
    Architectural Features
    • Early example of brick architecture.
    • Features two large shikhara towers, tallest being 55 meters high.
    • Houses Vajrasana (Seat of Enlightenment).
    • Sculptural reliefs depicting scenes from Buddha’s life.
    Sacred Sites within the Temple Complex
    • Bodhi Tree (descendant of original tree planted by Buddha)
    • Animeshlochan Chaitya (Second Week of Buddha’s meditation)
    • Ratnachakrama (Third Week of Buddha’s meditation)
    • Ratnaghar Chaitya (Fourth Week)
    • Ajapala Nigrodh Tree (Fifth Week)
    • Lotus Pond (Sixth Week)
    • Rajyatana Tree (Seventh Week)
    Historical Timeline
    • First temple built by Emperor Ashoka in 3rd century BCE.
    • Current structure from 6th century CE with restorations during Pala period.
    • Hiuen Tsang visited in 629 AD.
    Key Features and Preservation
    • Built with brick and stucco.
    • Large Buddha statue in meditative posture.
    • Stone railings relocated to nearby museum.
    • Actively preserved and restored as a UNESCO World Heritage Site.

     

    [UPSC 2023] In which one of the following regions was Dhanyakataka, which flourished as a prominent Buddhist centre under the Mahasanghikas, located?

    (a) Andhra (b) Gandhara (c) Kalinga (d) Magadha

     

  • Why the Parker Solar Probe is trying to ‘touch’ the Sun?

    Why in the News?

    The Parker Solar Probe made history on December 24, 2024, by coming within 6.1 million kilometers of the Sun’s surface, marking the closest approach ever by a spacecraft.

    Why the Parker Solar Probe is trying to ‘touch’ the Sun?

    About Parker Solar Probe

    • The Parker Solar Probe, launched in August 2018, is a car-sized robotic spacecraft named after Eugene Newman Parker, an American solar astrophysicist.
    • It is the first NASA mission named after a living researcher, and its mission is humanity’s first to explore within 3.8 million miles of the Sun’s corona.
    • The spacecraft is equipped with an advanced carbon-composite heat shield capable of withstanding temperatures up to 1,370°C.
    • This shield, which weighs only 73 kg, is designed to protect the probe from the Sun’s intense heat.
      • The probe’s instruments remain at a manageable 29°C due to the shield’s protection.
    • The primary goals are:
      • Approach the Sun: The probe aims to get as close as 6.5 million kilometers to study the Sun’s energy flow, solar corona heating, and the sources of solar wind.
      • Explore Solar Wind: Investigate the origins and behaviour of solar wind, the high-speed streams of charged particles that impact space weather.
      • Study Solar Corona: Delve into the mystery of why the Sun’s corona is 200 times hotter than its surface.
      • Investigate Plasma and Magnetic Fields: Study the structure and dynamics of plasma and magnetic fields at the sources of solar wind.
    • The Parker Solar Probe is equipped with four primary instruments:
      • FIELDS: Measures the electric and magnetic fields of the Sun’s atmosphere.
      • ISoIS: Observes energetic particles that lead to solar storms.
      • SWEAP: Records the properties of solar wind particles.
      • WISPR: Takes images of the solar corona.
      • Faraday Cup: Measures ion and electron density in the solar wind.

    Impact of the Mission on Solar Science

    • Understanding Solar Wind: The mission provides crucial data on the origins and behavior of solar wind, enhancing predictions of space weather and its impact on Earth.
    • Solving the Solar Corona Mystery: The probe’s findings suggest that Alfvén waves, plasma oscillations, may be the key mechanism responsible for the heating of the Sun’s corona, addressing a long-standing puzzle in solar physics.
    • New Discoveries on Space Dust: The probe’s discovery of dust-free pockets near the Sun challenges previous assumptions about the interaction of space dust with solar energy, offering new insights into solar dynamics.
    • Space Weather and Solar Flares: By monitoring the Sun’s activity, the probe aids in understanding solar flares and coronal mass ejections (CMEs), helping to mitigate the effects of space weather on Earth’s satellites and infrastructure.
    • Advancement in Solar Exploration Technology: The mission’s success in utilizing advanced heat shields and high-speed space travel techniques paves the way for future solar missions and deeper exploration of stellar physics.
    [UPSC 2022] If a major solar storm (solar flare) reaches the Earth, which of the following are the possible effects on the Earth?

    1.        GPS and navigation systems could fail.

    2.        Tsunamis could occur at equatorial regions.

    3.        Power grids could be damaged.

    4.        Intense auroras could occur over much of the Earth.

    5.        Forest fires could take place over much of the planet.

    6.        Orbits of the satellites could be disturbed.

    7.        Shortwave radio communication of the aircraft flying over polar regions could be interrupted.

    Select the correct answer using the code given below:

    (a) 1, 2, 4 and 5 only

    (b) 2, 3, 5, 6 and 7 only

    (c) 1, 3, 4, 6 and 7 only

    (d) 1, 2, 3, 4, 5, 6 and 7

     

  • Sarhul Festival Celebrations in Jharkhand

    Why in the News?

    On April 1, 2025, tribals in Jharkhand and the larger Chhotanagpur region will celebrate Sarhul, marking both the New Year and the arrival of spring.

    About Sarhul Festival

    • Sarhul is a significant Adivasi festival celebrated in Jharkhand and the Chhotanagpur region, covering parts of Chhattisgarh, Odisha, and Bihar.
    • It is celebrated in the Hindu month of Chaitra, typically three days after the appearance of the new moon.
      • It marks the new year and celebrates the arrival of spring.
    • It is celebrated by various tribes, including Oraon, Munda, Santal, Khadia, and Ho, each with its own unique customs.
    • The Sal tree (Shorea robusta) is venerated as the abode of Sarna Maa, the deity who protects the village from natural calamities and misfortunes.
    • The festival symbolizes the union of the Sun and Earth.
      • The pahan (male priest) represents the Sun, while his wife, the pahen, symbolizes the Earth. This union is essential for sustaining life, emphasizing the connection between sunlight and soil.
    • It also marks the renewal of life.
    • After the rituals, Adivasis begin ploughing their fields, sowing crops, or gathering produce from the forest.

    Cultural Significance of Sarhul

    • Sarhul evolved from a hunting festival to one that celebrates agriculture, reflecting the changing lifestyle of the Adivasi communities.
    • Sarhul is a cultural movement to preserve Adivasi heritage amidst urbanization and modernization, helping reinforce tribal identity.
    • Over time, Sarhul has become a platform for Adivasi political assertion, with some groups using the festival to demand the recognition of Sarna religion and its inclusion in India’s caste census.
    • Sarhul has also become a means for advocating tribal rights and social justice, particularly through the leadership of Baba Karthik Oraon.
    [UPSC 2018] Consider the following pairs: Tradition State

    1. Chapchar Kut festival — Mizoram

    2. Khongjom Parba ballad — Manipur

    3. Thong-To dance — Sikkim

    Which of the pairs given above is/are correct?

    (a) 1 only (b) 1 and 2 (c) 3 only (d) 2 and 3

     

  • India’s Coal Dependence rose to 79%

    Why in the News?

    According to MoSPI’s Energy Statistics in India 2025, coal contributed 79% to India’s total energy generation, amounting to 16,906 petajoules (PJ), marking a 2% increase from the previous year.

    Share of Coal in India’s Energy Basket:

    • Dominance: As of 2023-24, coal contributed 79% to India’s total energy generation, amounting to 16,906 petajoules (PJ), marking a 2% increase from the previous year.
    • Production Growth: In 2023-24, India saw a 12% increase in coal production, continuing a strong growth trajectory from the 15% growth in 2022-23, marking one of the fastest growth rates in the past decade.
    • Dependence on Imports: Despite a surge in domestic production, India remains 26% dependent on coal imports, although this has decreased from 31% in 2019-20.

    India’s Total Energy Basket:

    • Coal: Discussed above.
    • Nuclear Energy: Nuclear power contributes approximately 1.7% to the total electricity generation capacity, with an installed capacity of about 8,180 MW as of late 2024.
    • Crude Oil: The share of crude oil has decreased from 11% in 2014-15 to 6% in 2023-24, indicating a long-term decline in its contribution to India’s energy mix.
    • Natural Gas: Similarly, natural gas’s share has decreased from 9% in 2014-15 to 7% in 2023-24, reflecting a shift away from natural gas in the energy mix.
    • Renewable Energy: Despite significant investments and efforts by the government, renewable energy sources (solar, wind, hydro, and nuclear) contribute only 7% to the total energy mix in 2023-24, showing slow but steady growth over the past decade.

    Shift Towards Renewable Energy:

    • Total Contribution: Renewable sources contributed 7% of India’s total energy production in 2023-24, a modest increase from 6% in 2014-15. While this share remains small, the absolute production from renewables has grown at a 6.76% CAGR over the past 10 years.
    • Growth in Solar and Wind Energy:
      • The generation from solar, wind, and other renewable sources (excluding large hydro) has surged by 210% over the last decade, increasing from 6,555 KToE in FY15 to 20,279 KToE in FY24.
    • Key Renewable Energy Potential:
      • Wind energy holds the largest share of India’s renewable potential at 55.17%, with an estimated potential of 11,63,856 MW.
      • Solar energy is the second-largest contributor at 35.50%, with a potential of 7,48,990 MW.
      • Large hydro contributes 6.32% of the renewable energy potential with 1,33,410 MW.
    • Future Targets:
      • India added 3.4 GW of new wind capacity in 2024, with Gujarat (1,250 MW), Karnataka (1,135 MW), and Tamil Nadu (980 MW) leading the way.
      • India is aiming for 500 GW of non-fossil fuel-based energy capacity by 2030, which would significantly boost the share of renewables in the energy mix, reducing the reliance on coal and crude oil over the coming years.
    [UPSC 2020] Consider the following statements:

    1. Coal ash contains arsenic, lead and mercury.

    2. Coal-fired power plants release sulphur dioxide and oxides of nitrogen into the environment.

    3. High ash content is observed in Indian coal.

    Which of the statements given above is/are correct?

    (a) 1 and 2 only (b) 2 and 3 only (c) 1 and 3 only (d) 1, 2 and