April 2026 Current Affairs: India’s PFBR Achieves First Criticality

April 2026 Current Affairs for SSC Prototype Fast Breeder Reactor achieves first criticality On 6 April 2026, India’s 500 MWe Prototype Fast Breeder Reactor (PFBR) at Kalpakkam, Tamil Nadu, achieved first criticality. First criticality means the initiation of a controlled nuclear fission chain reaction. The reactor was developed with indigenous technology by the Indira Gandhi Centre for Atomic Research (IGCAR) and built and commissioned by Bharatiya Nabhikiya Vidyut Nigam Limited (BHAVINI). This was an important milestone for India’s nuclear-energy programme. Exam facts • Reactor: Prototype Fast Breeder Reactor (PFBR). • Capacity: 500 MWe. • Location: Kalpakkam, Tamil Nadu. • Key term: First criticality. Other topics to revise Review major government decisions, economy, defence, environment, sports and international affairs from April. Check the date and wording of each development using an official source. Source: Department of Atomic Energy / PIB, 7 April 2026: Official PIB release on PFBR first criticality.