Regunathamadai is a village in Tiruchuli tehsil in district of Virudhunagar, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Regunathamadai was 728 which includes 376 males and 352 females. Regunathamadai covers 695.4 ha area. Pincode of Regunathamadai is 626129.