Gangarai is a village in Bishnupur I tehsil in district of South Twenty Four Parganas, West Bengal, India. As per the data provided by Census of India in 2011, total population of Gangarai was 3,316 which includes 1,712 males and 1,604 females. Gangarai covers 104.75 ha area. Pincode of Gangarai is 700103.