A lot of these people (the Hindus) are stirred up by local political forces who feel threatened by Christianity. That doesn’t make it any better, but it explains why India seems to tolerate this in so many districts.
These are parts of India that have seen violence for centuries.
Forest-villages with aboriginal tribals, swinging allegiances based on which conversion group comes with the largest bounty. Barely Hindu, barely Christian.
This has been going on since the British were there, during WW2. The "Hindu" groups are the RSS factions, and the "Christian" groups include the NLFT, among others. Both mindlessly cruel and brutal.