I mean the Hindu population of India is declining compared to the Muslim population so I'm not sure what the OP is trying to imply about Pakistan and Bangladesh.
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If OP is arguing about absolute numbers instead of comparative ones he could try not being such a passive aggressive bitch and just state his position.
If absolute numbers of Hindus are down in Pakistan and Bangladesh it could just be that there's a huge, more wealthy Hindu state neighbouring those countries that Hindus are moving to.