Question

who is Arya samaj when they came to India​

Answer 1

After deeply studying the Vedas and Indian philosophy, Dayanand Saraswati came to conclusion that the Aryans were the chosen people, the Vedas the chosen gospel and India the chosen land. Based on this belief, he founded the Arya Samaj in Bombay in 1875.

Answer 2

it is a samaj founded by Raja Ram Mohan Roy .
it was started in the year 1875.