On the reference in the party manifesto that a BJP-led government would "revise and update" the nuclear doctrine, Singh said there should be no misgivings on this issue as it will maintain India's "no-first-use" policy.
Seeking to downplay the issue, he said, "All governments keep reviewing nuclear policy to tune it with the interest of common masses."
The BJP has said in its manifesto, "We will follow a two- pronged independent nuclear programme, unencumbered by foreign pressure and influence, for civilian and military purposes, especially as nuclear power is a major contributor to India's energy sector."
It has said, "BJP will study in detail India's nuclear doctrine, and revise it and update it, to make it relevant to the challenges of current times. We will maintain a credible minimum deterrent that is in tune with changing geostatic realities."
A credible minimum deterrence is the principle of India's 'no-first use' nuclear weapons policy, in force since the Atal Bihari Vajpayee government, and under it, an arsenal which can help in retaliating strongly if attacked by an adversary, will be maintained.
Releasing the manifesto along with other senior leaders here on April 7, the BJP's Prime Ministerial candidate Narendra Modi had vowed to pursue a "zero tolerance" approach on internal as well as external security so that "no one dares threaten" India.
The BJP chief also referred to the fishermen issue which has been an irritant in ties between India and Sri Lanka.
He contended that Modi as prime minister will resolve the issue.
