Erosion caused by the Ganga has turned acute in Malda's Manikchak and Ratua-I blocks. The river, swollen in monsoon rains, is gobbling up chunks of land and houses in localities like Gopalpur, Keshartola and Kalutontola in Manikchak, and in Bilaimari and Mahanandatola of Ratua-I block
In districts like Malda, North Dinajpur and South Dinajpur, rivers like the Ganga, the Mahananda, the Fulhar and the Koshi flow violently during the rains, eroding huge chunks of land on either bank