Chengannur is a developing municipal town in the Alappuzha district of the state of Kerala in South India. Chengannur is located in the extreme eastern part of Alappuzha district, on the banks of Pamba River. It is 117 kilometres north of the state capital Thiruvananthapuram on the MC Road. Chengannur, Thiruvananthapuram and Ernakulam. Chengannur is connected to Kollam and Kottayam by NH 220. Chengannur is noted for Chengannur Mahadeva Temple and its Old Syrian Church.