You're misunderstanding what I wrote. I was referring to culture and the fact that two eastern, most populous provinces of Pakistan are both Indian in heritage and culture. Mauryan or some random British rule does not change the fact that Ramlal Bhatti became Raheem Bhatti and continued to live the same (indian) life.
What percentage of india's population is punjabi or sindhi?? Definitely not more than 5%
Read my previous post again. Punjab and sindh have nothing in common with india when it comes to culture