Natwar Kalan is a village in Dinara tehsil in district of Rohtas, Bihar, India. As per the data provided by Census of India in 2011, total population of Natwar Kalan was 4,549 which includes 2,354 males and 2,195 females. Natwar Kalan covers 132 ha area. Pincode of Natwar Kalan is N/A.