Get your facts right. I am not supporting Karat and Co., but the US seventh fleet almost got involved in the Bangladesh War, and not the China War. And, FYI, the US was sending her fleet to aid Pakistan and not India. That the Seventh Fleet didn't actually get involved is because of some high level diplomatic string pulling. It's a well established fact, that in the Cold War era the US was pro-Pakistan and the USSR was pro-India - it's all to do with balance of power in the subcontinent. But the Cold War is over, international relationships are being redefined; and if it's in India's interest to ally with the US, then so be it.
