Question

find out where in India did ancestors of the community of Santhal workers who have been working in the tea plantation in Assam come from​

Answer 1

Explanation:

they came from the eastern part of India ( excluding hills )

Answer 2

Answer:

"Santhal" is the largest indigenous tribal group that is found in India (Assam,  Bihar, Odisha and West Bengal), Nepal and Bhutan.  

Explanation:

The primary occupation of the tribe is hunting, fishing, cultivation, and other minor activities for their livelihood in and around the forest. They migrated from Indochina to the coast of Odisha around 4000 years ago. Their existence came to light when they rebelled against Britishers since they grabbed their land and charged high taxes.