Arabic Sea Bay of Bengal Red Sea South China Sea
Jute Rice Poppies Cotton
1931 1951 1971 1991
Dhaka Rangpur Nawabganj Madanpur
1930 1970 1950 1990
Dhaka Rangpur Naisarabad Chittagong
50 metres 100 metres 200 metres 10 metres
Pakistan India Bhutan China
50 million 150 million 100 million 15 million
Meghna Ganges Jamuna Brahmaputra