Kab Narpati Nagar is a village in Hasanpur tehsil in district of Samastipur, Bihar, India. As per the data provided by Census of India in 2011, total population of Kab Narpati Nagar was 3,607 which includes 1,938 males and 1,669 females. Kab Narpati Nagar covers 321 ha area. Pincode of Kab Narpati Nagar is 848206.