Vadagarai is a village in Kilvelur tehsil in district of Nagapattinam, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Vadagarai was 1,288 which includes 650 males and 638 females. Vadagarai covers 541.11 ha area. Pincode of Vadagarai is 611104.