Nuclear Energy in India

1. At a Glance

• Nuclear Energy Mission (Union Budget 2025-26) targets 100 GW nuclear power capacity by 2047, positioned as central to India's Net Zero 2070 pathway [3][4].
• Currently a niche but strategically vital energy source; India's operating capacity is just 8.78 GW, projected to nearly triple to 22.38 GW by 2031-32 [1][3].
• Landmark 2025 legislative reform (SHANTI Act, 2025) opens the sector to limited private participation, ending decades of exclusive state control by the Department of Atomic Energy (DAE) [1][6].
• High-value UPSC topic linking energy security, climate commitments, federal legislation, and Atomic Energy Act reform — spans Prelims (facts/numbers) and Mains GS-II/III.

2. Why in the News

• Union Budget 2025-26 (Feb 2025) announced the "Nuclear Mission" with ₹20,000 crore outlay for Small Modular Reactor (SMR) R&D [2][6].
• Government moved to amend the Atomic Energy Act, 1962 and the Civil Liability for Nuclear Damage Act (CLNDA), 2010 to enable private investment [6].
• SHANTI Bill, 2025 ("Sustainable Harnessing and Advancement of Nuclear Energy for Transforming India") introduced in Parliament and reported enacted around December 2025 [1][6].
• Parliament questions (2025) on Nuclear Energy Mission, enhancing nuclear capacity, and SMR deployment indicate active parliamentary scrutiny [1][3].

3. Background & Evolution

• India's nuclear programme traces to Homi J. Bhabha's three-stage nuclear power programme, invoked by the PM while launching the current Nuclear Mission [1].
• DAE has historically held a state monopoly over nuclear power generation under the Atomic Energy Act, 1962.
• Union Budget 2025-26: Nuclear Energy Mission for Viksit Bharat formally announced with 100 GW-by-2047 target [3][4].
• 2025: Legislative push — amendments to Atomic Energy Act and CLNDA tabled to permit private/public-private collaboration [6].
• December 2025: SHANTI Bill enacted, enabling limited private sector participation under regulatory oversight [1].

4. Core Static Facts

Item	Detail
Nodal Ministry/Department	Department of Atomic Energy (DAE), under PMO [1]
Enabling framework	Atomic Energy Act, 1962; Civil Liability for Nuclear Damage Act, 2010; SHANTI Act, 2025 [6]
Current installed capacity	8.78 GW [1][3]
Near-term target	22.38 GW by 2031-32 (via indigenous 700 MW & 1000 MW reactors, international cooperation) [3]
Long-term target	100 GW by 2047 [3][4]
Budgetary allocation	₹20,000 crore for SMR design, development, deployment [1][2]
SMR target	At least 5 indigenously designed SMRs operational by 2033 [1][6]
Key reactor programme	Bharat Small Modular Reactor (SMR) [6]
Climate linkage	Supports India's Net Zero by 2070 commitment [3]

5. Multi-Dimensional Analysis

Economic

• ₹20,000 crore allocation signals large state-led capital push into an otherwise capital-intensive, long-gestation sector [2].
• Private sector entry (via SHANTI Act) expected to mobilise additional investment and reduce fiscal burden on DAE [1][6].

Environmental

• Nuclear positioned as a low-carbon baseload source complementing renewables in India's Net Zero 2070 strategy [3].

Scientific/Technological

• Focus on indigenously designed Small Modular Reactors (SMRs) — a shift from large reactors to modular, scalable technology [1][6].
• Continued reliance on 700 MW and 1000 MW indigenous reactor designs, some via international cooperation [3].

Legal/Constitutional

• Amendments to Atomic Energy Act, 1962 and CLNDA, 2010 needed because both currently restrict private/foreign liability exposure and ownership in nuclear generation [6].
• SHANTI Act, 2025 creates a new regulatory pathway for limited private participation [1].

Geopolitical/Strategic

• Indigenous reactor development paired with international cooperation (e.g., for 700 MW/1000 MW reactor deployment) reflects balancing self-reliance with global partnerships [3].

Administrative/Governance

• Shift from DAE's exclusive control to a regulated public-private model raises new questions of oversight, safety regulation, and liability distribution [1][6].

6. Recent Developments (last 12-18 months)

• Feb 2025: Union Budget 2025-26 launches Nuclear Energy Mission with ₹20,000 crore SMR outlay [2][6].
• 2025: Union Minister Dr. Jitendra Singh calls the Nuclear Mission a "transformative shift" in India's energy landscape [1].
• 2025: Parliament questions raised on Nuclear Energy Mission, capacity enhancement, and SMR construction/deployment [1][3][6].
• Dec 2025: SHANTI Bill/Act, 2025 passed, amending Atomic Energy Act 1962 and CLNDA 2010 to permit private participation [1][6].
• PM Modi publicly linked the Mission to Homi Bhabha's original nuclear vision [1].

7. Prelims Hooks

• Nuclear Energy Mission target: 100 GW nuclear capacity by 2047 [3].
• Current installed nuclear capacity: 8.78 GW [1].
• Projected capacity by 2031-32: 22.38 GW [3].
• Budget 2025-26 allocation for SMR R&D: ₹20,000 crore [2].
• Target: at least 5 indigenous SMRs operational by 2033 [1].
• Nodal body: Department of Atomic Energy (DAE) [1].
• 2025 legislation enabling private participation: SHANTI Act, 2025 (Sustainable Harnessing and Advancement of Nuclear Energy for Transforming India) [1].
• Acts amended for private sector entry: Atomic Energy Act, 1962 and Civil Liability for Nuclear Damage Act (CLNDA), 2010 [6].
• Reactor designs cited: indigenous 700 MW and 1000 MW reactors [3].
• India's nuclear programme rooted in Homi J. Bhabha's three-stage nuclear power programme [1].
• Climate goal linked to Nuclear Mission: Net Zero by 2070 [3].
• SMR programme name: Bharat Small Modular Reactor [6].

8. Mains Relevance

• GS-III: Infrastructure — Energy; Science & Technology — indigenization of technology; Environment — climate change/Net Zero commitments.
• GS-II: Government policies and interventions; issues arising from design/implementation (federal/private sector role, liability law reform).
• Possible question stems:
• "Discuss the significance of the Nuclear Energy Mission in achieving India's Net Zero target by 2070. What legislative reforms are necessary to attract private investment in the nuclear sector?"
• "Examine the rationale behind India's push for Small Modular Reactors. How do they differ from conventional large nuclear reactors in addressing energy security?"
• "Critically analyze the implications of amending the Civil Liability for Nuclear Damage Act, 2010 for private sector participation in India's nuclear power sector."

9. Related Topics to Study Next

• India's Renewable Energy targets (500 GW non-fossil by 2030) — complements nuclear in the clean-energy mix.
• Net Zero 2070 commitment (COP26) — overarching climate framework driving the Nuclear Mission.
• Three-Stage Nuclear Power Programme (Homi Bhabha) — historical/technical foundation.
• Civil Liability for Nuclear Damage Act, 2010 — liability regime being reformed.
• NSG (Nuclear Suppliers Group) and India's waiver — international nuclear cooperation angle.
• Indo-US Civil Nuclear Agreement (123 Agreement) — precedent for foreign nuclear cooperation.
• Make in India / Atmanirbhar Bharat in strategic sectors — links to indigenous SMR push.
• NITI Aayog energy security reports — broader policy context.

10. Common Errors / Trap Areas

• Confusing Nuclear Energy Mission (2025-26 Budget) with older schemes like the general "Nuclear Power Programme" — the Mission is a specific, newly funded initiative with SMR focus.
• Misattributing the nodal ministry — it is DAE (under PMO), not Ministry of Power or MNRE (Ministry of New and Renewable Energy).
• Mixing up capacity figures: 8.78 GW (current) vs 22.38 GW (2031-32 target) vs 100 GW (2047 target) — a classic Prelims trap.
• Assuming full privatization — the SHANTI Act allows only limited private participation under regulatory oversight, not complete liberalization.
• Conflating the Atomic Energy Act, 1962 with the Civil Liability for Nuclear Damage Act, 2010 — both were amended but serve distinct purposes (ownership/control vs. liability).