Very few of today’s Muslims in India (or Pakistan or Bangladesh, for that matter) are descended from Central Asian conquerors. Most are descended from native-born Hindus who were forcibly converted to Islam, or changed their religion later to escape the Hindu caste system or the higher taxes paid by non-Muslims, or even sometimes for genuinely religious reasons. In a truly secular India, it wouldn’t matter, which is why the country’s founders insisted that it should be secular. But that’s not what Narendi Modi wants, and Modi is winning.