I think that the Indian political class is well aware of threat from the North. Almost every other week, there is alarmist news in Indian media about Chinese threat and posture in the border with India. So I don't think that there will be a lack of focus from political leadership. Tactical surprises may be possible, but strategic goals of China in the region are well understood by India.
In my opinion, the problem with Indian political leadership is their myopic view of 'strategic autonomy'. India's only card is to be an operational ally of the only power on earth that is militarily superior to China. India is not assertive enough to play it properly. Indian foreign policy seems to be naive that way.