Tumasnar is a village in Antagarh tehsil in district of Uttar Bastar Kanker, Chhattisgarh, India. As per the data provided by Census of India in 2011, total population of Tumasnar was 673 which includes 341 males and 332 females. Tumasnar covers 402.15 ha area. Pincode of Tumasnar is 495224.