Katnai is a village in Akaltara tehsil in district of Janjgir Champa, Chhattisgarh, India. As per the data provided by Census of India in 2011, total population of Katnai was 1,218 which includes 631 males and 587 females. Katnai covers 283.71 ha area. Pincode of Katnai is 495552.