A ƙasa da Bhabar akwai wuraren ciyawa na Terai da Dooars.Da yawa daga cikin koguna na Indus da Ganges sun raba filin zuwa doabs, harsunan ƙasa waɗanda suka faɗaɗa zuwa inda raƙuman ruwa suka haɗu. Kusa da koguna akwai ƙasar sabon alluvium wanda ke fuskantar ambaliyar ruwa. Sama da iyakar ambaliyar ruwa, ƙasar bangar ita ce tsohuwar alluvium da aka ajiye a tsakiyar Pleistocene. Ruwan sama yana ƙaruwa daga yamma zuwa gabas. Wanne daga cikin ƙananan Ganges Plains da Aschal Valley sun fi kore fiye da filayen Brahmaputra? Kogin Brahmaputra ya tashi ta tsakiyar kwarin Brahmaputra kafin ya ratsa zuwa tsakiyar Assam, Bangladesh da kuma Bangladesh. An rarraba shi a matsayin yanki mai kore a Bangladesh, wanda ba a rarraba shi a matsayin yankin shekara-shekara ba. Bayan wucewa daga Assam zuwa Tibet, ana rarraba shi a matsayin yankin kore a Bangladesh.
tsakiyar Ganges Plain