<P> It was officially signed by then - Prime Minister Atal Bihari Vajpayee in 1998 and the day is celebrated by giving awards to various individuals and industries in the field of science and technology . </P> <Ul> <Li> Parmanu: The Story of Pokhran is a 2018 Bollywood movie based on India's underground Pokhran - II nuclear test . </Li> </Ul> <Li> Parmanu: The Story of Pokhran is a 2018 Bollywood movie based on India's underground Pokhran - II nuclear test . </Li>

Who was the indian president when its first nuclear tests were conducted