Girahia is a village in Nichlaul tehsil in district of Mahrajganj, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Girahia was 2,325 which includes 1,188 males and 1,137 females. Girahia covers 416.31 ha area. Pincode of Girahia is 273304.