From the point of vies of this place (i.e. for the people who stayed in the place) this is called emigration: when people leave the country, it's called a mass emigration.
From the point of view of the place where this person settles down, this is called immigration and this person is an immigrant
Ambedkar faced the stigmas of caste discrimination.
Hailing from the Hindu Mahar caste, his family was viewed as “untouchable” by the upper classes.
His schoolmates would not eat beside him, his teachers did not touch his copies as he came from a family that was considered 'unclean' by the orthodox Hindus.
