Sisahni is a village in Pakri Dayal tehsil in district of Purba Champaran, Bihar, India. As per the data provided by Census of India in 2011, total population of Sisahni was 10,501 which includes 5,565 males and 4,936 females. Sisahni covers 635.4 ha area. Pincode of Sisahni is 845428.