Perumba River is a freshwater river which flows through the Malabar region. It passes through Payyanur in Kannur district. A tributary of Perumba which is called as Vannathi River flows through the Mathamangalam. Perumba is called as Panappuzha in the Mathamangalam area. Another tributary is the Kallamkulam Totti that originates from Kallamkunnu and flows through Totti and finally merges with the Murikkum Thazkam. Transportation of goods are carried through this river.