New Delhi, Sep 6 - A former Indian Army chief General V.P. Malik Sunday said the scientists in the country need to reassure the army about the nuclear capabilities of the country after a former scientist questioned the results of the tests conducted in 1998.

A former scientist of the premier military research body, Defence Research and Development Organisation (DRDO) K. Santhanam has questioned the yield of the thermonuclear device tested May 11, 1998 and called the tests a 'fizzle'.

'They (the army) need to be reassured about the weapon system they use and about the planning of what kind of the yield they have when they hit the target,' Malik said Sunday.

Dubbing the arguments of the former scientist and president A.P.J Abdul Kalam as 'unconvincing', Malik asked the scientists to come clean on the controversy.

'Let us not forget that Dr Santhanam was part of his (Kalam's) team.