Kadachanallur is a village in Tiruchengode tehsil in district of Namakkal, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Kadachanallur was 13,001 which includes 6,520 males and 6,481 females. Kadachanallur covers 902.52 ha area. Pincode of Kadachanallur is 638008.