This is a very inflammatory comment. Many of the Pakistanis and Indian Muslims I know are proud of their South Asian heritage and actually turn their noses up at the Arabicization of their culture. Not all obviously - but enough that I know that your broadstroke painting of Indian Muslims is an extremely unfair characterization.
Indian Muslims and Pakistans and Bangladeshis are no less natives of the subcontinent than the Hindus or the Buddhists or the Jains are - they just happen to practice a different religion.