Nunchhori, probably the smallest river .Will it be better to call this a canal. This small river has the main water source is a lake named "Debotar Pukur", which is located at "Nunchhori" of Khagrachhori, and having an elevation of 700 ft from sea level. It is must, you have to pass the so called river if you wish to visit that lake.
The average depth of the river is around 1 ft, or may be less. It has a constant flow throughout the year, and only God knows how the lake used to produce this amount of water every day.Local people used to drink the water from here, and also they used it for their daily needs. Its very hard to find any tube well around here due to the rocks and stones under the soil.