Reunification of India Pak and BD is completely out of the question.
BD may be slightly bad but Pakistan is a complete shithole. The people are very uneducated. A Pakistani post-grad has lesser intellect than a 10th pass Indian. Their education system is probably the worst I have seen. India is leading the worls in pharmacy, software etc. and Pak is kaming electricity from Djinns.
The economy is absolute garbage. The army has been sucking the life out of it for decades. From milk to cement, everything is ownerd by army. They've taken loans from every bank except sperm bank and will enver be able to repay them. Leave loans, they're not in a position to pay back interest. China owns their ass. Luckily, India is also gaining a strog grip on them through IMF. Most Pakistanis are never told that US, India, Israel etc are major donors to IMF.
I would never think of reuniting with Pak. I think we just need to divert the 5 rivers of Punjab towards Rajasthan and then fence and clsoe the border. KP and NWFP can be taken-over by Afghanistan. Rest can "Mad-Max" it out with each other. They're a good buffer state to have with Afghanistan.