Harnasath is a village in Muhammadabad Gohna tehsil in district of Mau, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Harnasath was 836 which includes 440 males and 396 females. Harnasath covers 53.9 ha area. Pincode of Harnasath is N/A.