Tumsai is a village in Manoharpur tehsil in district of Pashchimi Singhbhum, Jharkhand, India. As per the data provided by Census of India in 2011, total population of Tumsai was 1,259 which includes 629 males and 630 females. Tumsai covers 681.16 ha area. Pincode of Tumsai is 833104.