Which of the following regions in Bangladesh is the habitat of Indigenous people?

Chittagong Hill Tracts

The correct answer is Option (2) → Chittagong Hill Tracts

"...In the context of world politics, what are the common interests of approximately 30 crore indigenous peoples spread throughout the world including India? There are 20 lakh indigenous people of the Cordillera region of the Philippines, 10 lakh Mapuche people of Chile, six lakh tribal people of the Chittagong Hill Tracts in Bangladesh, 35 lakh North American natives, 50,000 Kuna living east of Panama Canal and 10 lakh Small Peoples of the Soviet North. Like other social movements, indigenous people speak of their struggles, their agenda and their rights.".