Location: Northeastern India; bordered by Arunachal Pradesh, Nagaland, Manipur, Meghalaya, Tripura, Mizoram, West Bengal, and international borders with Bhutan and Bangladesh.
Major Rivers: Brahmaputra (lifeline of Assam), Barak.
Terrain: Fertile plains, hills (Karbi Anglong, North Cachar), forests, and wetlands.
Climate: Tropical monsoon; hot and humid summers, heavy rainfall, and mild winters.