Gosain Bigha is a village in Dhanwar tehsil in district of Giridih, Jharkhand, India. As per the data provided by Census of India in 2011, total population of Gosain Bigha was 373 which includes 193 males and 180 females. Gosain Bigha covers 65 ha area. Pincode of Gosain Bigha is 825418.