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51) The largest population of Scheduled Tribes is in
Explanation:
Other Options Explained:
(A) Himachal Pradesh → Although Himachal Pradesh has a tribal population, it is not the largest in the country.
(C) Arunachal Pradesh → Arunachal Pradesh has a high percentage of Scheduled Tribes, but the total population is smaller compared to Madhya Pradesh.
(D) Sikkim → Sikkim also has a significant tribal population, but again, it is not the largest in India.
Thus, the correct answer is (B) Madhya Pradesh.