India has achieved one of the most consequential milestones in its atomic energy journey, as the Prototype Fast Breeder Reactor (PFBR) achieved criticality.

Prime Minister Narendra Modi on Sunday congratulated the scientists for achieving 'first criticality' at the Prototype Fast Breeder Nuclear Reactor at Kalpakkam in Tamil Nadu, terming the ...

The initiation of a controlled nuclear fission chain reaction at the Prototype Fast Breeder Reactor sees India move into the second stage of a three-stage nuclear programme which ultimately aims to ...

The first Indian-built fast breeder nuclear reactor has achieved criticality, the stage at which the atomic reaction becomes self-sustaining, according to a statement from Prime Minister Narendra Modi ...

On the evening of 6 April 2026, inside a quiet control room along the Bay of Bengal, a set of numbers crossed an invisible threshold. With that moment, India’s long-gestating nuclear ambition took a ...