Lalasari is a village in Didwana tehsil in district of Nagaur, Rajasthan, India. As per the data provided by Census of India in 2011, total population of Lalasari was 3,107 which includes 1,670 males and 1,437 females. Lalasari covers 1032.4 ha area. Pincode of Lalasari is 341303.