Nagrikathan is a village in Tiruvadanai tehsil in district of Ramanathapuram, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Nagrikathan was 2,149 which includes 1,066 males and 1,083 females. Nagrikathan covers 1002.01 ha area. Pincode of Nagrikathan is 623404.