Lalpettai is a village in Kattumannarkoil tehsil in district of Cuddalore, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Lalpettai was 1,688 which includes 863 males and 825 females. Lalpettai covers 258.61 ha area. Pincode of Lalpettai is 608303.