I am one of those who have understood the deal and I know that we stand to reap fruits out of this deal in every way.
Why did the need for the deal arise ? To remind you the second nuclear test was done way back some time and that gave rise to the need for US to take an assurance that the further nuclear fuel that they will supply will not be used to repeat that route. If you have followed the events you will recall it was Dr APJ who worked to test the trigger the second time. It is he who is now also clear that tests have not to be conducted again and again. The learned individual that he is has already supported the deal.If you read the presentations it is clear that India's right of test is retained.
The deal is required to be able to procure nuclear fuel for our nuclear reactors. You are aware of the power shortage present in the nation. The deal is the correction route to this power gap eliminating.
The opposition to the deal is by CPM who take US as the eternal enemy. Be reminded of the definition given by Dr Samuelson..." If you do not turn Communist by 17, you do not have a Heart, But if you continue to be a Communist after 25 you do not have HEAD." I need not elaborate it more.
The initiation to sign this deal was done by BJP in their days in power. Pramod Mahajan was one of those who were entrusted the initiation. Now with the chance of POWER coming visible to BJP they want to take the chance of pulling down the govt by voting against the confidence motion.