<P> As an aftermath of the state emergency in 1975 that resulted in the collapse of the Prime Minister Indira Gandhi's government, the nuclear program was left with a vacuum of political leadership and even basic management . Work on the hydrogen bomb design continued under M. Srinivasan, a mechanical engineer, but progress was slow . </P> <P> The nuclear program received little attention from Prime Minister Morarji Desai who was renowned for his peace advocacy . In 1978, Prime Minister Desai transferred physicist Ramanna to Indian MoD, and his government was not entirely without progress in nuclear program and had the program continue to grow at a desirable rate . </P> <P> Disturbing news came from Pakistan when the world discovered the Pakistan's clandestine atomic bomb program . Contrary to India's nuclear program, Pakistan's atomic bomb program was akin to United States's Manhattan Project, it was under military oversight with civilian scientists in charge of the scientific aspects of the program . The Pakistani atomic bomb program was well funded and organised by then; India realised that Pakistan was likely to succeed in its project in matter of two years . </P> <P> In 1980, the general elections marked the return of Indira Gandhi and the nuclear program began to gain momentum under Ramanna in 1981 . Requests for additional nuclear tests were continued to be denied by the government when Prime Minister Indira Gandhi saw Pakistan began exercising the brinkmanship, though the nuclear program continued to advance . Initiation towards hydrogen bomb began as well as the launch of the missile programme began under Late president Dr. Abdul Kalam, who was then an aerospace engineer . </P>

Who was indias president when 1st nuclear test was done