Gangaili Arazi is a village in Purnia East tehsil in district of Purnia, Bihar, India. As per the data provided by Census of India in 2011, total population of Gangaili Arazi was 2,631 which includes 1,403 males and 1,228 females. Gangaili Arazi covers 36 ha area. Pincode of Gangaili Arazi is N/A.