Unwise! Soon after partition British Historians have predicted that Pakistan being Islamist will remain as one state while India unablewith to cope with its plurality not only in religious terms but also in linguistic and racial terms will break into many smaller states.
However, it is a different sto that history proved otherwise!
But taking Pak back is like swallowing a hand-grenade after pulling its lever out.
It's better to leave it for its fate lest you will have internal disturbances that the curretn political parties can not manage. Remeber the days of Nehru have gone, what you have now are divisive politics at their best!