Question

What is the most likely reason for the high population destiny in the Northeastern part of India

Answer 1

The Answer is the Ganges River is in that region

Answer 2

Well becuase  no slavery if you r talking about it in the 21st century but it u r talking about it in the past they moved there becuase the whites couldnt reached them in india so the blacks moved there but sometimes blacks turn on blacks and sell them for slavery