Khorsim Athai is a village in Phuloni tehsil in district of Karbi Anglong, Assam, India. As per the data provided by Census of India in 2011, total population of Khorsim Athai was 46 which includes 15 males and 31 females. Khorsim Athai covers 45 ha area. Pincode of Khorsim Athai is N/A.