Masoi Khurd is a village in Chainpur tehsil in district of Kaimur, Bihar, India. As per the data provided by Census of India in 2011, total population of Masoi Khurd was 3,395 which includes 1,722 males and 1,673 females. Masoi Khurd covers 316.46 ha area. Pincode of Masoi Khurd is 821103.