Chhatwan Kalan is a village in Baniapur tehsil in district of Saran, Bihar, India. As per the data provided by Census of India in 2011, total population of Chhatwan Kalan was 1,901 which includes 894 males and 1,007 females. Chhatwan Kalan covers 76 ha area. Pincode of Chhatwan Kalan is 841403.