Kalkasa is a village in Khairagarh tehsil in district of Rajnandgaon, Chhattisgarh, India. As per the data provided by Census of India in 2011, total population of Kalkasa was 695 which includes 346 males and 349 females. Kalkasa covers 322.5 ha area. Pincode of Kalkasa is 491881.