My impression of the conflict: The partition of British India into independent India and independent Pakistan was very violent and traumatizing for lots of people, and also left some unsolved border disputes. The independence of Bangladesh from Pakistan was likewise very violent and saw India helping the Bangladeshi people gain independence. Both events are long enough in the past that people could have gotten over the hate by now, except that it gets refreshed with new violence every few years. In the last few decades there’s been several terror attacks in India that were sponsored by the Pakistani state. But now India too has a religious fundamentalist government, so maybe they’ll be trying to return the favor. Authoritarians love creating external enemies, it helps them stay in control of their own population.