A BBC commentary by an Indian defence analyst which makes interesting reading and comes with some surprises, notably this:
The influential Indian Express newspaper on Wednesday reported that in mid-January two army units, including a Special Forces battalion, had marched on New Delhi without telling the proper authorities. For 18 hours it reportedly panicked the government...Gen Singh rejected the news report as an "absolutely stupid" reaction to a regular manoeuvre - for which no prior intimation to the federal authorities was necessary - to test the readiness of key units to mobilise swiftly for emergency deployment in foggy conditions, usually prevalent in northern India during winter.
Link:http://www.bbc.co.uk/news/world-asia-india-17635618