Thagarai is a village in Kallakkurichi tehsil in district of Viluppuram, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Thagarai was 1,953 which includes 1,017 males and 936 females. Thagarai covers 313.74 ha area. Pincode of Thagarai is 606201.