Question: who was india's president when did first nuclear test where conducted

title: Pokhran-II
text: `` Today , at 15 : 45 hours , India conducted three underground nuclear tests in the Pokhran range . The tests conducted today were with a fission device , a low yield device and a thermonuclear device . The measured yields are in line with expected values . Measurements have also confirmed that there was no release of radioactivity into the atmosphere . These were contained explosions like the experiment conducted in May 1974 . I warmly congratulate the scientists and engineers who have carried out these successful tests . ''