Kallagam is a village in Lalgudi tehsil in district of Tiruchirappalli, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Kallagam was 2,818 which includes 1,386 males and 1,432 females. Kallagam covers 1006.56 ha area. Pincode of Kallagam is 621653.