Therku Viravanallur is a village in Ambasamudram tehsil in district of Tirunelveli, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Therku Viravanallur was 4,778 which includes 2,401 males and 2,377 females. Therku Viravanallur covers 2452.58 ha area. Pincode of Therku Viravanallur is 627416.