Lauwa 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 Lauwa Kalan was 6,577 which includes 3,158 males and 3,419 females. Lauwa Kalan covers 314 ha area. Pincode of Lauwa Kalan is 841403.