Kasthuni Purab is a village in Musafirkhana tehsil in district of Sultanpur, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Kasthuni Purab was 1,927 which includes 964 males and 963 females. Kasthuni Purab covers 183.05 ha area. Pincode of Kasthuni Purab is N/A.