Phul Banaili is a village in Kasba tehsil in district of Purnia, Bihar, India. As per the data provided by Census of India in 2011, total population of Phul Banaili was 1,142 which includes 555 males and 587 females. Phul Banaili covers 105 ha area. Pincode of Phul Banaili is 854301.