The one thing I like about India is the Brutal repression of secessionits then later giving candies to whoever is left. Naxal - Maoists: largest militant group. At one time, largest in the world. Outskirts of Hyderabad people pay "taxes" to them to run a business. The govt made a police force called Greyhounds, tortures, extra judicial killing, the amount of brutality meted out by the republic were worse than Stalin purges.
Khalistanis are another example. Didn't even hesitate to roll tanks in there.
Let's not talk about the Bodo - Naga groups.
I don't see any break aparts. The only possible way is when we get too rich, we will have "first world problems" like you see in Scots or Irish.