It's between India and China, some of the ethnic groups want independence either from india, or as separate indian states, and the PM is a hindu nationalist so he's fine seeing them suffer so long as nothing changes.
China is suspected of helping by sending people over from Myanmar, one of their satellites.
If this was in a more important place it could start ww3, but right now everyone is happy to just watch people die there.
While I personally don't like the BJP and they are at fault to some extent, this conflict has nothing to do with Hindu nationalists. This is about ethnic groups, people from different religions can belong to same ethnic group.
There had been rising tension between the two communities for the past few years, which sparked into a full grown conflict when the High Court of the state ordered the state government to make a decision regarding the reservation status of the majority community.
The state government didn't end up making a decision in the given timeframe, but both communities were up in arms about it, the majority community in favour and the minority community against it, this resulted in small skirmishes followed by a full on conflict.
this conflict has nothing to do with Hindu nationalists
It has everything to do with Hindu nationalists.
PM is a Hindu nationalist. CM of Manipur is a Hindu nationalists. He gave support to largely Hindu Meiteis against largely Christian Kukis in the Manipur. Basically they are garnering Hindu vote to ensure future electoral victory just like in Gujarat.