India & China both have a formal "No First Use" position that has been repeatedly reaffirmed https://en.wikipedia.org/wiki/No_first_use

A grab of a portion of east Indian states via conventional warfare, followed by cease-fire and negotiations is very much in the ambit of China's strategy. Modi is attempting to prevent this by scaling up military infrastructure on the eastern front, but its still way-way behind what China already has in place. (by orders of magnitude)

https://www.newindianexpress.com/thesundaystandard/2021/oct/... https://www.hindustantimes.com/india-news/new-weapons-deploy...