Karamnasa
KARAMNASA, a river of northern India, tributary to the Ganges on its right bank, forming the boundary between Bengal and the United Provinces. The name means " destroyer of religious merit," which is explained by more than one legend. To this day all high-caste Hindus have to be carried over without being defiled by the touch of its waters.
Note - this article incorporates content from Encyclopaedia Britannica, Eleventh Edition, (1910-1911)