Sundarbans delta is formed by the Ganga and Brahmaputra rivers.

Ganges-Brahmaputra Delta

The Ganges-Brahmaputra Delta (also known as the Brahmaputra Delta, the Sundarbans Delta or the Bengal Delta) is a river delta in the Bengal region of the Indian subcontinent. The name Sundarbans is thought to be derived from sundry or Sundari (Heritiera fomes), the name of the large mangrove trees most plentiful in the area.

• The Sundarbans is a cluster of low-lying islands in the Bay of Bengal, spread across India and Bangladesh, famous for its unique mangrove forests.
• It is one of the most attractive and alluring places remaining on earth, a truly undiscovered paradise.
• Several islands are dotting this region, and some of them are attractions in themselves. The most famous of them are Kalash, Henry and Netidhopani.