Kosalnar is a village in Bhairamgarh tehsil in district of Bijapur, Chhattisgarh, India. As per the data provided by Census of India in 2011, total population of Kosalnar was 1,748 which includes 836 males and 912 females. Kosalnar covers 2064.16 ha area. Pincode of Kosalnar is 494661.