THE Comprehensive Test Ban Treaty (CTBT) negotiations in Geneva are over. India has formally blocked the consensus in the Conference on Disarmament (CD). How the declared nuclear powers proceed from here is unclear. Will they take the Ramaker text to the United Nations General Assembly (UNGA), with a "friend of the treaty" such as Australia tabling a resolution which will be put to the vote, or will they let the CTBT die? We shall soon know, of course, but as the endgame is played out, it is worth reflecting on India's diplomacy on this issue, past, present, and future.