Narthamalai is a village in Kulathur tehsil in district of Pudukkottai, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Narthamalai was 2,189 which includes 1,133 males and 1,056 females. Narthamalai covers 660.45 ha area. Pincode of Narthamalai is 622501.