Kamasin is a village in Machhlishahr tehsil in district of Jaunpur, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Kamasin was 2,597 which includes 1,242 males and 1,355 females. Kamasin covers 312.88 ha area. Pincode of Kamasin is 222165.