Before CAA, string of government orders made it impossible for Muslim migrants to get Indian citizenship
(The Times of India)

The most significant GO is the October 22, 2018 amendment to the Passport (Entry into India) Rules, 1950 and Foreigners Act, 1946, discriminating against Muslims and atheists for the grant of long-term visas (LTVs). The changed LTV regulations say, `Only members of minority communities in Pakistan, Bangladesh, Afghanistan, namely, Hindus, Sikhs, Buddhists, Jains, Parsis and Christians, are eligible to apply for long-term visas.`