Ramsar (Rajasthan), Aug 29 - Prime Minister Manmohan Singh said here Saturday that the controversy over the May 1998 Pokhran nuclear tests was 'needles' and cited former president A.P.J. Abdul Kalam's assertion that the tests were successful.

'A wrong impression has been given by some scientists (about the success of Pokhran-II),' Manmohan Singh told reporters here, adding: 'A needless controversy has been created over the Pokhran tests.'

Manmohan Singh also pointed out that Kalam, who spearheaded India's nuclear programme, has clarified that the Pokhran-II tests were successful.

The controversy arose when K. Santhanam, who was director of the test site for Pokhran-II, said earlier this week that the thermonuclear test, one of the three conducted on May 11, 1998 was a 'fizzle' - meaning that it did not meet the intended parametres.

Santhanam's remarks sparked speculation about India's nuclear deterrence.