Why did Buddhism not spread in India?

Answer 1

most rapid spread of religions is by the sword i.e war and Buddhism is a very peaceful religion.

AnswerWhen Buddhism was founded in India Hinduism WA at its peak the so called Brahmins were busy exploiting the Junta and felt threatened when Buddhism was founded coz it taught that all men r equal and did not believe in diety worship and rituals This was totally against Hinduism and if ppl really adopted this religion then the Brahmins cld not suppress the plpland it would also mean loosing out on the riches that ppl gave them to atone their sins

King Asoka adopted this religion after he saw the plunder of Kalinga he was so deeply moved that he vowed not to wage another war and send his son and daughter to the east to spread the Buddhism

Answer 2

At one point Buddhists were one of the majority religions in India; but Hindu priests became entrenched in India's politics and used their position to reinforce Hinduism. Between that and Buddhism's belief in no gods, lead to a decline in popularity there. In Modern times Buddhism is flourishing again. Many of the dailits (outcast caste) are becoming Buddhists.