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