The author expects the BJP to support the N-deal and believes that it will enhance its stature! This is completely naive. The left front which supports the government is a natural congress ally has decided to oppose the deal. In case the deal is operationalized, they will withdraw support. So the authors suggestion is that BJP, which is the main opposition party should save the nuclear deal and allow it to be operational. This would mean supporting the government! So the deal will go through, the left will withdraw support and the UPA government will survive with BJP support!!
The author probably needs to take some lessons in politics! If the Congress cannot take along an ally, it expects the opposition to "behave patriotically" and support the government!! No wonder the author is an academician !