The Kangsha (also known as the Kangsai or the Kangsabati ) is a river in the northern parts of Mymensingh and Netrakona districts of Bangladesh. The Someshwari is one of the rivers that join it from the north.

Course

At Gaglajuri, the Dhanu is joined by the Kangsha which flows from the Garo Hills past Nalitabari as the Bhogai is at its best in the Netrakona subdivision at Deotukon and Barhatta. After Mohanganj it becomes a narrow, winding khal with banks little higher than its own lowest level. The river flows past Barhatta, Mohanganj and Dharampasha upazilas. The Dhala and Dhanu rivers which flow into Kishoreganj District are branches of the Kangsha. The Kangsha flows into Surma River in Sunamganj District.

Watershed

According to a report on wetland protection, "All floodwaters come from the Garo/Meghalaya Hills through a number of hill streams and rivers."

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