Thirumullaivasal is a village in Sirkali tehsil in district of Nagapattinam, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Thirumullaivasal was 13,745 which includes 6,681 males and 7,064 females. Thirumullaivasal covers 1455.67 ha area. Pincode of Thirumullaivasal is 609113.