Well it were the mohajirs along with bengalis who were forefront of Pakistan movement.And it were the bengalis and mohajirs who went from UP bihar started rioting in lahore,otherwise punjab was calm on partition.I am more worried about the Mohajirs who though looked down upon try to prove their loyalty to Pakistan more than the Punjabis. A Mohajir Parvez Musharraf masterminded Kargil and be was the one who led the troops to capture Siachen in late 80s.