Question: who was president of india when first nuclear explosion was tested

title: Pokhran-II
text: Shakti I -- A thermonuclear device yielding 45 kt , but designed for up to 200 kt . Shakti II -- A plutonium implosion design yielding 15 kt and intended as a warhead that could be delivered by bomber or missile . It was an improvement of the device detonated in the 1974 Smiling Buddha ( Pokhran - I ) test of 1974 , developed using simulations on the PARAM supercomputer . Shakti III -- An experimental linear implosion design that used `` non-weapon grade '' plutonium , but which likely omitted the material required for fusion , yielding 0.3 kt . Shakti IV - A 0.5 kt experimental device . Shakti V -- A 0.2 kt experimental device .