R Chidambaram, Principal Scientific Adviser to the Union government who had led the team of scientists during the 1998 nuclear tests, today dismissed as "absurd" the suggestion that Pokhran-II explosions did not yield the desired results. “There is no controversy over the yield of Pokhran-II nuclear tests,” he said.
Chidambaram, who was the chairman of the Department of Atomic Energy in 1998, was quoted by PTI news agency as saying: “If he (Santhanam) has any new scientific information which we are not aware of, it will be nice to have that data. He is a scientist and not a politician. Let him tell exactly what made him give that comment.” The results were published in detail in international journals and also took into account studies by several global experts, he added.
Santhanam, who was the Defence Research and Development Organisation representative for Pokhran-II, had said “India should not sign the Comprehensive Test Ban Treaty (CTBT) as the country needed to carry out more tests as the thermonuclear tests in 1998 had failed to produce the desired results”. As per him, the yield of the tests could only be classified as a “fizzle” rather than big bang. In nuclear science, a fizzle is used when the outcome fails to meet the desired yield. Today as well, Santhanam, in a TV interview, stood by his comment.
Coming in defence of the test, former President APJ Abdul Kalam said the tests were successful and had generated the desired yield. After the test, he said, there was a detailed review based on two experimental results: seismic measurement close to the site and around; radioactive measurement of the material after post shot drill in the test site.“The tests at Pokhran were completely successful,” Kalam was quoted as saying by a news channel.
Navy Chief Admiral Sureesh Mehta, while addressing his last press conference before retiring, said today: “India's nuclear deterrence capabilities are proven and capable enough”
Official sources, when asked to comment on Santhanam's statement, said India's position on CTBT was well known, clear and consistent. “We will not subscribe to any treaty that is discriminatory in nature,” they said.
Former national security adviser Brajesh Mishra, too, dismissed Santhanam’s statement by asserting that India had a “meaningful” number of nuclear weapons and an effective delivery system to go with it.
He told a private television channel that the five nuclear tests conducted in May 1998 were successful.
“Dr APJ Abdul Kalam, then the scientific adviser to Defence Ministry, had announced that the 1998 nuclear tests conducted in Pokhran were successful. Dr Kalam’s version was credible enough, as Santhanam was working directly under him. That should set the record straight,” Mishra said
Notably, the test, as per Indian scientists, is said to have yielded 45 kilotons (KT), a claim challenged by western experts who said it was not more than 20 KT.
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