Mirthi Biniya is a village in Didihat tehsil in district of Pithoragarh, Uttarakhand, India. As per the data provided by Census of India in 2011, total population of Mirthi Biniya was 78 which includes 32 males and 46 females. Mirthi Biniya covers 83.97 ha area. Pincode of Mirthi Biniya is 262550.