Sirunagalur is a village in Kallakkurichi tehsil in district of Viluppuram, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Sirunagalur was 1,187 which includes 586 males and 601 females. Sirunagalur covers 280.15 ha area. Pincode of Sirunagalur is 606305.