In a capital where ambassadors have to jostle to get face time with those who matter, India’s ambassadorLalit Mansingh was standing serene last week surrounded by high-powered senators. They had given him thebest farewell gift, a goodbye present he most wanted and that too on his birthday. Too good to be true? Well,the formal launch of the Senate India Caucus came last week and just two days before Mansingh left Washington.He was beaming, obviously happy that he had managed to push his idea to fruition and timed it for maximumeffect. There was good help from key Indian Americans who built constituency pressure and had persuaded manyof their senators to join the new group.