Kalahasthinathapuram is a village in Tharangambadi tehsil in district of Nagapattinam, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Kalahasthinathapuram was 2,474 which includes 1,196 males and 1,278 females. Kalahasthinathapuram covers 411.55 ha area. Pincode of Kalahasthinathapuram is 609309.