Harpur Otsi is a village in Mahua tehsil in district of Vaishali, Bihar, India. As per the data provided by Census of India in 2011, total population of Harpur Otsi was 2,632 which includes 1,377 males and 1,255 females. Harpur Otsi covers 85 ha area. Pincode of Harpur Otsi is N/A.