Kumai Khasmahal is a village in Gorubathan tehsil in district of Darjiling, West Bengal, India. As per the data provided by Census of India in 2011, total population of Kumai Khasmahal was 1,590 which includes 798 males and 792 females. Kumai Khasmahal covers 1057.05 ha area. Pincode of Kumai Khasmahal is 735206.