Atrai River (also spelt as Atreyee) flows in West Bengal and northern parts of Bangladesh. In ancient times the river was called Atreyee and finds a mention in the Mahabharata, one of the two Sanskrit epics of ancient India. It is linked with Jorapani river, Fuleswari river, and Karatoya River. The Atrai originates in Siliguri ward no 40, near Baikanthapur forest of West Bengal and then after flowing through Dinajpur District of Bangladesh, it enters India again. It passes through Kumarganj and Balurghat community development blocks in Dakshin Dinajpur district. The river then renters Bangladesh. It splits into two rivers—the Gabura and the Kankra in Dinajpur district. It crosses the Barind Tract and flows into Chalan Beel. The river serves as a perennial source of fishing, even though it is often the cause of flooding in many areas during monsoons. The total length of this river is approximately 240 mi. The maximum depth of the river is 99 ft.