There are some recent articles in Indian Newspapers hinting that China is planning some aggressive action against India. The article points to the internal problems at home in China.
However, to put it bluntly India is by no means a soft target. China might not win the exchange as India has plenty of manpower and would also get aid from many allies including most of the West.
A more logical target would be a historical enemy like Vietnam that could not resist the overwhelming numbers.
The United States should be firming up its relationship with India to ensure its future. India is a key ally and a more logical trading partner than China. Improving our relations with India is vital to Americas long term interests.