PYQ Relevance:
[UPSC 2018] With growing energy needs should India keep on expanding its nuclear energy programme? Discuss the facts and fears associated with nuclear energy.
Linkage: India growing energy needs and the role of a specific low-carbon source, which is relevant in the broader context of exploring other low-carbon alternatives like hydrogen for industrial use. |
Mentor’s Comment: To achieve a net-zero economy, we need to significantly increase the use of electricity in various sectors. Currently, fossil fuels are used not only to generate electricity but also to provide heat and raw materials for industries. For example, carbon from coal is used in steel production, and hydrogen from natural gas is used to make ammonia for fertilizers. In the steel industry, hydrogen can replace carbon. So, a net-zero economy would involve using more electricity and hydrogen in industrial processes.
Today’s editorial discusses the important role of hydrogen fuel in industries to help achieve a net-zero economy. This content is relevant for GS Paper 3 in the mains exam.
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Let’s learn!
Why in the News?
To achieve a net-zero economy, which requires more use of hydrogen, hydrogen production and electricity storage need to work together efficiently.
What is hydrogen’s role in achieving net-zero emissions, particularly in industry?
- Replacement for Carbon in Steel-making: Hydrogen can replace carbon (from coal) to reduce iron ore in the steel industry, enabling low-emission steel production. Eg: Jindal Steel is implementing hydrogen-based Direct Reduced Iron (DRI) processes in its steel plants in Angul, India.
- Feedstock for Fertilizer Industry: Hydrogen is used to produce ammonia, a key input for fertilizers. Currently sourced from natural gas, it can be replaced with green hydrogen to cut emissions. Eg: Green hydrogen is being utilized in ammonia plants to decarbonize agricultural inputs.
- Energy Carrier for Hard-to-Electrify Sectors: Hydrogen provides high-temperature heat and energy where direct electrification is not feasible, such as in cement and chemical industries. Eg: Hydrogen-powered kilns are being explored in cement production to reduce carbon emissions.
- Storage and Use of Surplus Renewable Energy: Surplus electricity from solar and wind can produce hydrogen via electrolysis, storing energy for industrial use. Eg: Electrolysers operating during solar peak hours produce hydrogen for later industrial use, aiding in grid balancing.
- Enabler of Circular and Low-Carbon Economy: Hydrogen supports closed-loop industrial systems and enables the transition to a low-carbon industrial ecosystem. Eg: Industrial parks are utilizing shared hydrogen infrastructure for multiple processes, promoting sustainability.
Why is nuclear vital for meeting India’s future power needs?
| Reason |
Explanation |
Example |
| Reliable Base Load Power |
Provides continuous, 24/7 electricity, unlike intermittent solar and wind. |
Kakrapar Atomic Power Station in Gujarat supplies stable power, reducing reliance on coal. |
| Low-Carbon Energy Source |
Emits very low greenhouse gases, essential for India’s net-zero targets. |
One nuclear plant avoids millions of tonnes of CO₂ compared to coal-fired plants of similar capacity. |
| High Energy Density & Land Efficiency |
Produces large energy output from a small land area, ideal for land-scarce regions. |
A 700 MW PHWR needs far less space than an equivalent-capacity solar farm. |
| Energy Security & Indigenous Capability |
Indigenous PHWR tech reduces import dependency, boosting self-reliance. |
Bharat Small Reactors (BSRs) initiative supports local nuclear plants for industrial use. |
| Supports Industrial & Developmental Goals |
Meets growing electricity demand from industries, EVs, and digital infrastructure. |
Indian Railways is exploring nuclear power to sustainably meet part of its future electricity requirements. |
How do electrolysers help avoid flexing nuclear plants?
- Utilize Surplus Electricity: Electrolysers consume excess electricity (especially during low demand or high renewable generation), preventing wastage. Eg: During off-peak hours, nuclear plants continue running at full power, and electrolysers convert surplus electricity into hydrogen.
- Avoids Technical Challenges of Flexing Nuclear: Flexing (ramping up/down) nuclear plants is technically complex and not cost-effective. Electrolysers provide a flexible load instead. Eg: Countries like France prefer operating electrolysers over reducing nuclear output to balance grid load.
- Reduces Need for Electricity Storage: By producing hydrogen instead of storing electricity in batteries, electrolysers lower reliance on expensive energy storage systems. Eg: A hybrid system with electrolysers and minimal battery backup is more economical than large-scale battery-only setups.
- Creates Industrial Value from Surplus Power: Hydrogen produced by electrolysers can be used directly in industries like steel and fertilizer, giving value to otherwise curtailed energy. Eg: Surplus nuclear power at night is used to produce hydrogen for ammonia production, supporting the fertilizer sector.
- Maintains Economic Efficiency of Nuclear Plants: Electrolysers help nuclear plants operate at full capacity, maximizing their economic return by avoiding part-load inefficiencies. Eg: Operating a 700 MW PHWR continuously at full load ensures lower per-unit cost and higher return on investment.
Which policy changes improve the synergy between hydrogen generation and electricity storage?
- Redefining Green Hydrogen as Low-Carbon Hydrogen: Broaden the definition to include hydrogen from nuclear and other low-carbon sources, not just solar/wind. Eg: If hydrogen from nuclear is included under “low-carbon,” it becomes eligible for government incentives and boosts its adoption.
- Integrated Planning for Hydrogen and Storage Infrastructure: Encourage policies that promote co-location of electrolysers and battery storage to optimize power use. Eg: A hybrid facility that stores electricity when prices are low and runs electrolysers when solar/wind generation is high.
- Incentives for Grid-connected Electrolyser Projects: Offer financial and regulatory support to industries that install grid-responsive electrolysers. Eg: Time-of-use electricity pricing policies that make hydrogen production cheaper during surplus power hours.
- Mandating Industrial Use of Green/Low-Carbon Hydrogen: Introduce mandates for sectors like steel and fertilizers to shift partially to low-carbon hydrogen. Eg: A policy requiring steel plants to use 10% green hydrogen by 2030 encourages investment in electrolysers.
- Support for Hybrid Hydrogen-Storage Business Models: Develop regulations that allow joint operation and revenue models for battery storage and hydrogen production. Eg: A private power developer earns incentives both for stabilizing the grid (via battery) and producing green hydrogen.
Where has the NPCIL planned the deployment of new 700 MW Pressurized Heavy Water Reactors (PHWRs) in India?
- Kakrapar Atomic Power Station (KAPS), Gujarat: KAPS is already home to two operational 700 MW PHWR units (KAPS-3 and KAPS-4), with plans for further expansion. The successful commissioning of these units has demonstrated the robustness of the 700 MW PHWR design.
- Rajasthan Atomic Power Station (RAPS), Rajasthan: RAPS-7, India’s third indigenously designed 700 MW PHWR, achieved first criticality in September 2024. RAPS-8 is under construction and is expected to be operational by 2026.
- Gorakhpur Haryana Anu Vidyut Pariyojana (GHAVP), Haryana: GHAVP is set to host four 700 MW PHWR units, with GHAVP-1 and GHAVP-2 under construction and expected to be operational by 2028 and 2029, respectively.
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Way forward:
- Accelerating Infrastructure Development: India should fast-track the construction of 700 MW PHWR units across key sites like KAPS, RAPS, and GHAVP, ensuring timely completion to meet future energy demands and reduce reliance on coal.
- Policy Support for Hydrogen and Nuclear Synergy: Government policies should incentivize the integration of nuclear power with hydrogen production, promoting hybrid systems that can utilize surplus nuclear energy for green hydrogen generation and enhance industrial decarbonization efforts.
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Why in the News?
The decline in food prices is seen as a major reason for the drop in inflation. After two rate cuts by the RBI, inflation is expected to stay below 4% in the coming months, which might lead to another rate cut of 50 basis points.
What was India’s retail inflation rate in March?
- March 2025 Retail Inflation Rate: India’s retail inflation eased to 3.34% in March 2025, marking the lowest rate since August 2019.
- Comparison to Previous Month: This rate represents a decrease from February’s 3.61%, indicating a continued downward trend in inflation.
- Primary Contributors to the Decline: The significant drop in food prices, particularly vegetables, eggs, and pulses, contributed to the decline. Eg, vegetable prices fell by 7.04% year-on-year in March.
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Why have food prices been a major factor in the decline of retail inflation?
- Sharp Decline in Vegetable Prices: Vegetable prices saw a significant drop of 7.04% year-on-year in March 2025, compared to a small increase of 1.07% in February. This sharp fall in vegetable prices helped lower overall food inflation.
- Lower Pulses Prices: Pulses prices fell by 2.73% in March, after a smaller 0.35% decrease in February, contributing to reduced food inflation.
- Moderation in Overall Food Inflation: Food inflation in March 2025 decreased to 2.69% from 3.75% in February. This marked the lowest food inflation since November 2021, indicating a significant reduction in food price pressures.
- Improved Farm Output: The moderation in food prices is partly due to better farm output, which led to a more stable supply of food items, especially vegetables and pulses, easing inflationary pressures.
- Government and Central Bank Support: The government’s expectations for above-average monsoon rains in 2025 are likely to boost farm output further, maintaining lower food prices, which will continue to moderate overall inflation.
How did the Reserve Bank of India respond to the easing inflation trend?
- Second Consecutive Rate Cut: On April 9, 2025, the RBI reduced the key policy repo rate by 25 basis points to 6.00%, marking its second consecutive rate cut aimed at stimulating economic growth amid moderating inflation.
- Shift to Accommodative Stance: The RBI changed its monetary policy stance from “neutral” to “accommodative,” signaling a more supportive approach to economic growth while maintaining vigilance over inflation.
- Revised Inflation Forecast: The central bank projected the Consumer Price Index (CPI) inflation to average 4% for the fiscal year 2025–26, down from the previous forecast of 4.2%, reflecting improved inflation dynamics.
- Lowered GDP Growth Estimate: The RBI revised its GDP growth forecast for the fiscal year to 6.5%, down from 6.7%, acknowledging the challenges posed by global uncertainties and trade tensions.
What risks did the RBI highlight that could impact the inflation outlook?
- Global Market Uncertainties: The RBI noted that ongoing global uncertainties, such as trade tensions (like the U.S.-China trade war), could disrupt supply chains and impact inflationary pressures in India. Eg, any further escalation in global trade disputes could lead to higher import costs.
- Adverse Weather Conditions: The RBI pointed out that unpredictable weather events, such as unseasonal rains or droughts, could lead to food supply disruptions and push up food prices, affecting overall inflation. Eg, a poor monsoon could lead to shortages in key agricultural products.
- Rising Global Commodity Prices: The central bank warned that fluctuations in global commodity prices, including oil and metals, could lead to higher domestic prices, contributing to inflation. Eg, a rise in global crude oil prices could increase transportation and fuel costs in India.
- Supply Chain Disruptions: The RBI highlighted the risk of supply-side bottlenecks, especially due to external factors like geopolitical conflicts or supply chain disruptions caused by the COVID-19 pandemic. These could raise prices for imported goods and affect domestic inflation. Eg, disruptions in global electronics supply chains could lead to higher prices for tech products.
- Core Inflation Pressures: The RBI also noted that core inflation, which excludes volatile items like food and fuel, remained persistently high at 4.1%, signaling that inflationary pressures could be more entrenched in the economy, which poses a risk to the inflation outlook. Eg, rising demand for services could contribute to sustained core inflation.
Way forward:
- Strengthen Supply Chain Resilience: The government and RBI should work together to improve supply chain infrastructure and reduce vulnerabilities to global disruptions. This includes addressing logistical bottlenecks, improving domestic production capabilities, and diversifying import sources to mitigate the impact of geopolitical tensions and climate events.
- Focus on Sustainable Agricultural Practices: To ensure stable food prices, long-term investments in sustainable farming techniques, irrigation systems, and better farm management practices are crucial. This will not only help stabilize food prices but also contribute to higher farm output and lower volatility in food inflation.
Mains PYQ:
[UPSC 2024] What are the causes of persistent high food inflation in India? Comment on the effectiveness of the monetary policy of the RBI to control this type of inflation.
Linkage: Food inflation and the RBI’s role in controlling it, which is a key aspect of the scenario described in the article.
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Why in the News?
Recently, the Supreme Court said that hospitals will lose their licences if newborn babies go missing. It also directed High Courts to make sure all pending child trafficking case trials are finished within six months.
What did the Supreme Court warn parents about regarding child trafficking?
- Vigilance Against Child Trafficking: The Supreme Court warned parents to be “extremely vigilant” to protect their children from trafficking for purposes such as sexual exploitation, forced labour, and begging. A slight negligence or carelessness could lead to severe consequences.
- Consequences of Negligence: The court highlighted that the pain parents experience when losing a child to trafficking is different and more agonising than the loss of a child due to death. The court emphasised that negligence could lead to the lifetime agony of not knowing the whereabouts or fate of the child.
- Exploitation of Poor and Vulnerable Families: The court pointed out that traffickers often prey on families from poor sections of society, exploiting their helplessness. This issue is compounded by well-organized trafficking networks that use technology to track victims.
Why does the court believe child trafficking for forced crime is on the rise?
- Exploitation of Juvenile Justice Laws: Criminal gangs exploit the legal protection offered to minors under the Juvenile Justice (JJ) Act, using trafficked children for illegal activities like theft, drug peddling, and begging, knowing the penalties are lenient. Eg: According to NCRB 2022, over 5,000 children were apprehended for petty crimes, many suspected to be victims of trafficking and coercion by organized gangs who remain untouched by law.
- Demand-Supply Gap in Adoption System: Long waiting periods and a complex legal framework for adoption in India create a black market for child adoption, encouraging trafficking. Eg: As per Central Adoption Resource Authority (CARA), while more than 29,000 parents were registered for adoption in 2023, only 3,596 adoptions took place—leading to illegal demand and fueling child trafficking networks.
- Weak State Response and Enforcement: The court criticized state governments like Uttar Pradesh for lack of seriousness in tracking trafficking cases and failing to appeal against bail orders granted to traffickers. Eg: In the case heard, 13 accused granted bail by the Allahabad High Court absconded, and their whereabouts remained unknown for months, showing systemic gaps in enforcement.
How did the Supreme Court respond to the bail granted by the Allahabad High Court in the child trafficking case?
- Criticized the High Court’s Decision as Callous: The Supreme Court strongly condemned the Allahabad High Court’s decision to grant bail, calling it “very callous” and insensitive given the gravity of the crime. Eg: The bail allowed 13 accused in an inter-State child trafficking racket to go free, most of whom later absconded, frustrating the investigation.
- Cancelled the Bail of the Accused: The apex court revoked the bail orders and directed that the accused be taken into custody without delay. Eg: The accused included a nurse at a primary health centre in Chhattisgarh who played a key role in illegal infant sales under the guise of adoption.
- Ordered Speedy Trial: The court directed that the trial be completed within six months to ensure justice is not delayed. Eg: This was aimed at avoiding procedural delays and ensuring accountability in crimes involving vulnerable children.
What actions did the Supreme Court direct hospitals to take in cases of missing newborns?
- Ensure Complete Protection of Newborns: Hospitals must take full responsibility to safeguard infants immediately after birth, ensuring no unauthorized person can access them. Eg: If a newborn goes missing from a maternity ward, the hospital administration will be held accountable for negligence.
- Strict Monitoring and Accountability Measures: Hospitals were warned that if newborns are found trafficked, they could face suspension of license and legal action. Eg: A nurse involved in an infant trafficking racket from a Primary Health Centre in Chhattisgarh was among the accused in the case.
- Implement Protocols for Birth and Discharge: The court emphasized the need for strict procedures during childbirth and discharge, including documentation and identity verification. Eg: Hospitals must verify the identity of guardians or parents before handing over the baby, to prevent impersonation or baby-swapping.
Way forward:
- Strengthen Surveillance and Inter-agency Coordination: Establish a centralized digital monitoring system linking hospitals, child welfare committees, and law enforcement to track births, adoptions, and missing children in real time.
- Community Awareness and Legal Safeguards: Launch nationwide awareness campaigns on child trafficking risks and ensure strict enforcement of child protection laws with fast-track courts for trafficking cases.
Mains PYQ:
[UPSC 2023] Development and welfare schemes for the vulnerable, by its nature, are discriminatory in approach.” Do you agree? Give reasons for your answer.
Linkage: Child victims of trafficking are undoubtedly among the most vulnerable. This PYQ examines the nature of welfare schemes for vulnerable populations, which is relevant to the effectiveness of state interventions aimed at preventing child trafficking and rescuing victims.
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Why in the News?
Recent studies reveal that the Indian Plate is splitting into two, with the lower part detaching and sinking into the Earth’s mantle, a process called delamination, as published by the American Geophysical Union.
About Delamination:
- Delamination in tectonic plates refers to the process where the lower part of a continental plate, including the lower crust and/or lithospheric mantle, splits and sinks into the Asthenosphere.
- This process is driven by density differences and can lead to rapid uplift, changes in stress regimes, and altered magmatism.
- It can occur in various tectonic settings, including compressional zones, subduction zones, and intraplate regions.
- The denser lower part of the plate, including the lower crust and/or lithospheric mantle, is less buoyant than the less dense asthenosphere, leading to sinking.
- High temperatures can also weaken the lithosphere and facilitate delamination.
Indian Plate and Its Splitting:
- The Indian Plate has been colliding with the Eurasian Plate for about 60 million years, causing the formation of the Himalayas and influencing regional seismic activity.
- It is shifting northward at a rate of approximately 5 cm per year..
- The lower, denser part of the Indian Plate is detaching and sinking into the Earth’s mantle.
- This may lead to increased seismic activity due to shifts in tectonic stress.
- In regions like the Himalayan collision zone, delamination results in fractures that increase stress in the Earth’s crust, raising the likelihood of seismic events.
| [UPSC 2004] Consider the following geological phenomena:
1. Development of a fault 2. Movement along a fault 3. Impact produced by a volcanic eruption 4. Folding of rocks Which of the above cause earthquakes?
Options:
(a) 1, 2 and 3 (b) 2 and 4 (c) 1, 3 and 4 (d) 1, 2, 3 and 4 |
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Why in the News?
Recently Google introduced its seventh-generation TPU (Tensor Processing Unit), named Ironwood.
About Ironwood
- Ironwood is Google’s seventh-generation Tensor Processing Unit (TPU), designed to accelerate AI model training and inference with improved performance and efficiency.
- It builds on previous TPUs, enhancing speed and efficiency for AI workloads.
- It has been optimized for complex AI tasks, especially those requiring high-speed data processing for neural networks and deep learning models.
- Initially used internally, Ironwood is now available via Google Cloud Platform, allowing businesses to harness its power without investing in dedicated hardware.
What is a TPU?
- A TPU is a specialized processor developed by Google to accelerate machine learning tasks, particularly those involving TensorFlow.
- TPUs are optimized for tensor operations, crucial for training deep learning models, enabling faster data processing and high efficiency.
How is TPU Different from GPU and CPU?
|
CPU |
GPU |
TPU |
| What is it? |
Central Processing Unit – General-purpose processor for various computing tasks. |
Graphics Processing Unit – Specialized for parallel processing, initially for graphics rendering. |
Tensor Processing Unit – Specialized processor designed by Google for accelerating machine learning tasks, particularly for AI and deep learning. |
| Specialization |
General-purpose tasks (sequential processing) |
Parallel processing (graphics, machine learning) |
Specialized for AI tasks (tensor computations) |
| Performance |
Slower for AI tasks due to sequential processing |
Faster than CPU for parallel tasks |
Fastest for AI tasks like matrix multiplication |
| Efficiency |
Versatile but less efficient for AI operations |
Energy-efficient for parallel tasks |
Highly energy-efficient for machine learning |
| Best for |
Running applications, managing systems |
Graphics rendering, machine learning |
Deep learning, neural network training |
| [UPSC 2020] With the present state of development, Artificial Intelligence can effectively do which of the following?
(1) Bring down electricity consumption in industrial units (2) Create meaningful short stories and songs (3) Disease diagnosis (4) Text-to-Speech Conversion (5) Wireless transmission of electrical energy
Select the correct answer using the code given below:
Options: (a) 1, 2, 3 and 5 only (b) 1, 3 and 4 only (c) 2, 4 and 5 only (d) 1, 2, 3, 4 and 5 |
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Why in the News?
PM recently remembered Sir Chettur Sankaran Nair, a nationalist and jurist who famously fought a courtroom battle against British officials involved in the Jallianwala Bagh massacre of 1919.
Nair’s stand in the courtroom is now a subject of a forthcoming film, Kesari Chapter 2.
About Sir Sankaran Nair:
- Born in 1857 in Mankara village, Kerala, Nair came from an aristocratic family.
- He was educated at Presidency College in Madras and pursued a law degree.
- Nair began his legal career with Sir Horatio Shepherd, Chief Justice of Madras High Court.
- In 1897, Nair became the youngest president of the Indian National Congress (Amravati (Mh) Session) and was appointed as a permanent judge of the Madras High Court in 1908.
Role in the Jallianwala Bagh Case:
- Nair challenged Michael O’Dwyer, the Lieutenant Governor of Punjab, for his role in the Jallianwala Bagh massacre (1919), accusing him of following policies that led to the massacre.
- O’Dwyer sued Nair in England for defamation. Despite biased British courts, Nair refused to apologize, even when O’Dwyer offered to forgo the £500 penalty.
- The trial highlighted the bias in the British judicial system and fuelled Indian resentment against British rule.
Other Contributions:
- Nair made progressive rulings, like supporting inter-caste and inter-religious marriages and ruling against treating converts to Hinduism as outcasts.
- He supported India’s self-government and played a key role in expanding the Montagu-Chelmsford reforms (1919).
- In 1922, Nair critiqued Gandhi‘s methods in his work “Gandhi and Anarchy”.
- He helped draft the 1919 constitutional reforms, pointing out flaws in British rule, with many of his suggestions accepted.
| [UPSC 2007] Which one of the following aroused a wave of popular indignation that led to the massacre by the British at Jallianwala Bagh?
(a) The Arms Act (b) The Public Safety Act (c) The Rowlatt Act (d) The Vernacular Press Act |
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Why in the News?
China has suspended exports of a wide range of critical minerals and magnets after US’s tariff embargo.
What Are Rare Earth Elements (REEs) and RE Magnets?
- REEs are a group of 17 elements in the periodic table, including Lanthanum (La), Neodymium (Nd), Europium (Eu), and Ytterbium (Yb).
- Though not rare, they are found in low concentrations, making extraction challenging and costly.
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- Light REEs (LREEs): Elements 57-63, such as La, Ce, Nd, and Sm.
- Heavy REEs (HREEs): Elements 64-71, like Gd, Tb, Dy, and Er.
- Scandium and Yttrium: Classified with HREEs due to similar chemical properties.
- Rare Earth Magnets are powerful permanent magnets made from elements like Neodymium (Nd), Samarium (Sm), and Dysprosium (Dy).
- They are far stronger and more efficient than traditional magnets, crucial for high-tech electronic applications.
Global Supply Chain of REEs:
- REEs are abundant but difficult to extract economically.
- China alone dominates, producing 70% of the global supply and controlling 80% of the refining capacity. REEs are primarily mined from China’s Bayan Obo mine.
- Australia, USA, Brazil, and Russia also contribute, though less significantly.
- Refining also is largely controlled by China, though other nations are working to build their own refining capabilities to reduce dependency.
| [UPSC 2022] Consider the following statements:
1. Monazite is a source of rare earths. 2. Monazite contains thorium. 3. Monazite occurs naturally in the entire Indian coastal sands in India. 4. In India, Government bodies only can process or export monazite.
Which of the statements given above are correct?
(a) 1, 2 and 3 only (b) 1, 2 and 4 only* (c) 3 and 4 only (d) 1, 2, 3 and 4 |
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