India's Prototype Fast Breeder Reactor (PFBR) at Kalpakkam Achieves Criticality on April 6, 2026

Parliamentary Panel Recommends MDO Entry in Uranium Mining; India's 3-Stage Nuclear Plan to Thorium

The Parliamentary Committee on Atomic Energy has recommended allowing Mine Developer-cum-Operator (MDO) participation in uranium mining under DAE oversight to meet India's growing fuel demand for indigenous PHWRs. India currently imports uranium from Kazakhstan, Russia, Uzbekistan, and Canada, and aims to expand nuclear capacity from 8.7 GWe to 100 GWe by 2047. The three-stage nuclear program aims to transition from uranium to thorium for long-term energy self-sufficiency.

SHANTI Act Draft Rules Released: India Opens Nuclear Sector to Private Firms, Targets 100 GW by 2047

India has released draft rules for the SHANTI Act, opening the civil nuclear sector to private companies for the first time. The U.S. nuclear industry is preparing submissions by September 4. This is a major step towards India's target of 100 GW nuclear power by 2047 and development of indigenous Small Modular Reactors.

Subsea Cables Carry 99% Internet Traffic: Vulnerabilities, Ownership Concentration & India's Resilience Plan

Subsea cables carry over 99% of global internet traffic, yet their supply chain is concentrated among a few private players and hyperscalers, making them vulnerable to sabotage, cyberattacks, and economic disruption. Recent NATO, Finland, and China incidents highlight intensifying threats, while India is building repair capacity via a DoT single-window clearance portal. This is a high-yield topic for GS3 infrastructure, science-tech, and security questions.

KAVACH Version 4.0 Commissioned on SCR: India’s Indigenous Automatic Train Protection System Explained

KAVACH, India's indigenous Automatic Train Protection (ATP) system, has been upgraded to Version 4.0 and commissioned on the South Central Railway's Malkajgiri–Kamareddi section over 108 route km. This is crucial for UPSC as it touches infrastructure, safety technology, and comparisons with global systems like ETCS, ATC, and PTC. The article also links to Sam Pitroda committee recommendations on railway modernisation.

Kudankulam Nuclear Reactor Costs Surge 55%: Impact on India's Nuclear Expansion Plans

Cost of four under-construction nuclear reactors at Kudankulam has risen by 55% to ₹1,38,330 crore, driven by Russia-Ukraine war. This poses a challenge to India's ambitious nuclear expansion plans and could increase electricity tariffs, especially as the government opens the sector to private participation.

Climate Change Intensifies Clear Air Turbulence: 55% Rise in Severe CAT Over North Atlantic, DGCA Investigates Air India Incident

Climate change is making mid-flight turbulence, especially clear air turbulence (CAT), more frequent and severe. A 2023 study found severe CAT over the North Atlantic rose over 55% in four decades. For exam aspirants, this links climate change impacts to aviation safety, DGCA's regulatory role, and passenger safety protocols.

Anil Kakodkar Advocates Thorium Fuel in PHWRs to Accelerate India's Nuclear Self-Reliance

Top nuclear scientist Anil Kakodkar proposes introducing thorium fuel in India's indigenous PHWR fleet to expedite utilisation of abundant thorium reserves and achieve nuclear fuel self-reliance, addressing growing energy demands and global uranium supply constraints.

India’s First LNG-Diesel Dual-Fuel Train Launched by ICF; Compare with Hydrogen Train for UPSC

Indian Railways launched its first LNG-diesel dual-fuel train from Sabarmati on September 27, 2026, following the hydrogen train debut in July. This is a high-yield topic for UPSC Prelims (Science & Tech, Environment) and Mains (GS-3: infrastructure, alternative fuels). The article also explains Kavach (Automatic Train Protection system) – a recurring Prelims favourite.