Manchanavadi is a village in Needamangalam tehsil in district of Thiruvarur, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Manchanavadi was 1,219 which includes 600 males and 619 females. Manchanavadi covers 316.61 ha area. Pincode of Manchanavadi is 614101.