Step 1: Understanding the Question.
The question asks about the place referenced by the term “Atong bo hastéo”, which is geographically associated with one of the northeastern states of India.
Step 2: Identifying the Correct State.
Assam is the state commonly referred to in this context, given its significant linguistic and cultural ties to the Tripuri language and the region’s influence.
Step 3: Conclusion.
Therefore, the correct answer is (4) Assam, as it is the state associated with Atong bo hastéo.