Kulasekaranallur is a village in Thiruvidaimarudur tehsil in district of Thanjavur, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Kulasekaranallur was 3,021 which includes 1,497 males and 1,524 females. Kulasekaranallur covers 360.15 ha area. Pincode of Kulasekaranallur is 609809.