India has not not accepted a cap on its strategic nuclear capability while entering into the civilian nuclear deal with the Unites States, Prime Minister Manmohan Singh declared in the Lok Sabha today.Replying to a day-long discussion on the nuclear accord, Singh also declared that "We will not not forego the three-stage programme that will enable us to utilise the vast thorium reserves in future."The Prime Minister said the government, through the deal, has "widened development options for meeting the adequate energy needs of the country," and has taken "full care" that the strategic programme is protected."It is a step forward, which will take the country on a higher growth and development trajectory," Singh said adding that research and development opportunities will also not be adversely affected due to the Indo-US agreement.