structural:expansion, structural:reformatting
The Bay of Bengal is the northeastern part of the Indian Ocean. The world's largest bay, geographically it is positioned between the Indian subcontinent and the Indochinese peninsula, located below the Bengal region.

Many South Asian and Southeast Asian countries are dependent on the Bay of Bengal. Geopolitically, the bay is bounded on the west and northwest by India, on the north by Bangladesh, and on the east by Myanmar and the Andaman and Nicobar Islands of India. Its southern limit is a line between Sangaman Kanda, Sri Lanka, and the northwesternmost point of Sumatra, Indonesia. Cox's Bazar, the longest sea beach in the world and Sundarbans, the largest mangrove forest and the natural habitat of the Bengal tiger, are located along the bay.

The Bay of Bengal occupies an area of 2,600,000 square kilometres (1,000,000 sq mi). A number of large rivers flow into the Bay of Bengal: the Ganges – Hooghly, the Padma, the Brahmaputra – Jamuna, the Barak – Surma – Meghna, the Irrawaddy, the Godavari, the Mahanadi, the Brahmani, the Baitarani, the Krishna, and the Kaveri.