In the state of ______, the general direction of the Himalayas is from southwest to northeast.

Arunachal Pradesh

The correct answer is Option (4) → Arunachal Pradesh

The Correct Answer is Arunachal Pradesh. The Himalayas in the Darjiling and Sikkim regions lie in an east-west direction, while in Arunachal Pradesh they are from the southwest to the northwest direction. Dihang River/Siang River is the name given to the Brahmaputra River in Arunachal Pradesh.