Siswaraja is a village in Maharajganj tehsil in district of Mahrajganj, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Siswaraja was 2,084 which includes 1,074 males and 1,010 females. Siswaraja covers 172.48 ha area. Pincode of Siswaraja is 273302.