By religion the population was 19,916,438 Hindu , 4,567,295 Muslim , 535,950 Jain , 78,552 Zoroastrian , and about 200,000 Christian . By religion the population was 19,916,438 Hindu , 4,567,295 Muslim , 535,950 Jain , 78,552 Zoroastrian , and approximately 200,000 Christian .