What is the common examiner trap about Science & Tech in UPSC exams?

Confusing India's primary focus (PHWRs) with the dominant global technology (LWRs). They may ask which reactor type India is prioritizing for scaling up, expecting LWR as the answer, but the correct answer is PHWR.

What should UPSC aspirants remember about Science & Tech for Prelims?

1. Target this Data: SHANTI Act, 2025 (name and year) 2. Target this Nodal Body: Department of Atomic Energy (DAE) / Nuclear Power Corporation of India Ltd (NPCIL) 3. Target this Legal Point: SHANTI Act replaced Atomic Energy Act, 1962 & Civil Liability for Nuclear Damage Act, 2010

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India Prioritizes PHWRs Over LWRs; Seeks US Collaboration on Small Modular Reactors Under SHANTI Act 2025

Q: The SHANTI Act, 2025, which opened India's nuclear sector, falls primarily under the purview of which government department?

Department of Atomic Energy, The Department of Atomic Energy (DAE) is the nodal agency responsible for all nuclear energy policy, research, and power generation in India. The SHANTI Act is a legislative framework governing this sector.

Q: Consider the following statements regarding India's nuclear energy strategy as per the article: 1. India's primary focus is on scaling up indigenous Pressurized Heavy Water Reactor (PHWR) technology. 2. India is seeking extensive foreign collaboration for importing Light Water Reactors (LWRs) due to their lower cost. 3. The SHANTI Act, 2025, replaced both the Atomic Energy Act, 1962, and the Civil Liability for Nuclear Damage Act, 2010. Which of the statements given above is/are correct?

Both 1 and 3, Statement 1 is correct: India is doubling down on PHWRs. Statement 2 is incorrect: India finds LWRs costly and is not prioritizing them; collaboration is sought mainly for SMRs. Statement 3 is correct: The SHANTI Act replaced the two mentioned laws.

Q: The SHANTI Act, which recently opened India's nuclear sector to private players, was passed by the Parliament in which year?

2025, The article explicitly states: "In December last year, Parliament passed the Sustainable Harnessing and Advancement of Nuclear Energy for Transforming India (SHANTI) Act, 2025." The article is from 2026, referring to the previous year.

Q: What is a primary reason cited in the article for India's cautious approach towards Light Water Reactors (LWRs) from foreign partners?

High project costs leading to expensive power tariffs., The article directly states: "The problem with LWRs, from an Indian perspective, is high project costs, which translate into a high per-unit cost of power." This economic concern is a key driver for focusing on indigenous PHWRs.

Science & Tech Infrastructure Intl. Relations PolityHIGH

Target:UPSC GS-IIIMPSCSSC GATeachingPrelims HighMains MediumStatic GK Link

20 May 2026

~2 min

Source: Indian Express

Key Data:SHANTI Act, 2025PHWR (220-700 MWe)10CFR810 authorization

Bodies:Department of Atomic EnergyNuclear Energy Institute (US)US-India Strategic Partnership Forum

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~2 min · Quick mode

What This Article Covers

1.India's primary nuclear energy focus remains on scaling up its indigenous Pressurized Heavy Water Reactor (PHWR) technology, not importing Light Water Reactors (LWRs).

2.India is specifically seeking foreign collaboration and funding for Small Modular Reactors (SMRs), identified as a key area for future commercial competitiveness.

3.The outreach follows the landmark SHANTI Act, 2025, which opened the nuclear sector to private participation and revised the liability regime.

The Big Picture

Prelims · HighMains · Medium

India has communicated its post-SHANTI Act nuclear strategy to a high-level US delegation: focus on scaling up indigenous PHWR technology while collaborating with foreign partners, especially the US, on Small Modular Reactors (SMRs) to attract capital and expertise. This marks a strategic pivot in India's civil nuclear energy policy, emphasizing self-reliance with selective foreign partnership.

Exam Lens

Quick Exam Facts From News

Key LegislationSHANTI Act, 2025

Indigenous Reactor TechPressurized Heavy Water Reactors (PHWRs)

Foreign Tech SoughtSmall Modular Reactors (SMRs)

Replaced LawsAtomic Energy Act, 1962 & Civil Liability for Nuclear Damage Act, 2010

1-Minute Revision

›Key Legislation: SHANTI Act, 2025
›Indigenous Reactor Tech: Pressurized Heavy Water Reactors (PHWRs)
›Target this Data: SHANTI Act, 2025 (name and year)
›Target this Nodal Body: Department of Atomic Energy (DAE) / Nuclear Power Corporation of India Ltd (NPCIL)
›Target this Legal Point: SHANTI Act replaced Atomic Energy Act, 1962 & Civil Liability for Nuclear Damage Act, 2010

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News Snapshot

⚖️

Legal Overhaul

The SHANTI Act 2025 replaced two key nuclear laws, enabling private sector entry and revising liability rules.

🇮🇳

Indigenous Priority

India will prioritize scaling its own PHWR technology over costly foreign Light Water Reactors (LWRs).

🤝

Targeted Collaboration

India is open to foreign collaboration primarily in Small Modular Reactors (SMRs) for funding and expertise.

Detailed Analysis & Strategic Depth

Context / Background

India's nuclear sector has been tightly state-controlled for decades under the Atomic Energy Act, 1962. The Civil Liability for Nuclear Damage Act, 2010, created hurdles for foreign suppliers due to liability clauses, stalling projects like Jaitapur. The SHANTI Act, 2025, is a paradigm shift, opening operations and fuel management to the private sector while revising the liability framework to attract investment.

Core Analysis & Implications

India's strategy is a calibrated two-track approach: scale domestic PHWRs (220-700 MWe) and seek foreign partnership for SMRs. This balances energy security (mastery of PHWR tech using natural uranium) with the need for capital and advanced tech for future competitiveness. The move away from LWRs addresses high project costs and tariff concerns, protecting indigenous design capabilities. The outreach to the US, facilitated by authorizations under the US 10CFR810 regulation, signals a strategic energy partnership.

Future Outlook / Way Forward

The success hinges on attracting private Indian players (like Reliance, Adani, Tata) and foreign sovereign funds, especially from West Asia, for SMR manufacturing. The regulatory clarity from the SHANTI Act must now translate into bankable projects. Long-term, India's three-stage nuclear program and thorium fuel cycle remain goals, with SMRs potentially serving as a bridge technology and export opportunity.

Key Facts at a Glance

Key LegislationSHANTI Act, 2025

Indigenous Reactor TechPressurized Heavy Water Reactors (PHWRs)

Foreign Tech SoughtSmall Modular Reactors (SMRs)

Replaced LawsAtomic Energy Act, 1962 & Civil Liability for Nuclear Damage Act, 2010

You've read the full analysis. Now test your understanding.

Practice exam-style questions based on this article.

Q1Static LinkageEasyUPSC, SSC, State PSC

The SHANTI Act, 2025, which opened India's nuclear sector, falls primarily under the purview of which government department?

Q2Statement-basedHardUPSC

Consider the following statements regarding India's nuclear energy strategy as per the article:

1. India's primary focus is on scaling up indigenous Pressurized Heavy Water Reactor (PHWR) technology.

2. India is seeking extensive foreign collaboration for importing Light Water Reactors (LWRs) due to their lower cost.

3. The SHANTI Act, 2025, replaced both the Atomic Energy Act, 1962, and the Civil Liability for Nuclear Damage Act, 2010.

Which of the statements given above is/are correct?

Q3Data-centricMediumUPSC, SSC, Banking

The SHANTI Act, which recently opened India's nuclear sector to private players, was passed by the Parliament in which year?

Q4Application/ImpactMediumUPSC, SSC

What is a primary reason cited in the article for India's cautious approach towards Light Water Reactors (LWRs) from foreign partners?

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India Prioritizes PHWRs Over LWRs; Seeks US Collaboration on Small Modular Reactors Under SHANTI Act 2025

Exam Lens

Quick Exam Facts From News

1-Minute Revision

News Snapshot

Legal Overhaul

Indigenous Priority

Targeted Collaboration

Detailed Analysis & Strategic Depth

Context / Background

Core Analysis & Implications

Future Outlook / Way Forward

Prelims Flashpoints

Key Facts at a Glance