Radhapuram is also a legislative assembly constituency in Tirunelveli district.
The Chettikulam beach is almost 3 km which lies in straight line.
North panakudi is the nearest railway station to Radhapuram.
According to the 2011 census, the taluk of Radhapuram had a population of 302,268 with 149,056 males and 153,212 females.
Child population in the age group below 6 was 16,219 Males and 15,620 Females.