Alagrammam is a village in Tindivanam tehsil in district of Viluppuram, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Alagrammam was 5,158 which includes 2,594 males and 2,564 females. Alagrammam covers 729.47 ha area. Pincode of Alagrammam is 604302.