Every informed Indian knows that the Nuclear Deal is important for country. However the communists have used their 60 MPs as bargaining chip against it. If the congress thinks that it is necessary to sign it now , then it should go ahead with it. Congress has done reasonably good in last 4 years. They should have faith in people and if necessary face elections.
It is not only the Prime Minister or Congress which is responsible for the future of country. Every Party every citizen is equally responsible. At worst congress will have to sit in opposition after election. But it is far better than succumbing to adamant Communists.