Jambai is a village in Tirukkoyilur tehsil in district of Viluppuram, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Jambai was 3,684 which includes 1,891 males and 1,793 females. Jambai covers 694.66 ha area. Pincode of Jambai is 605754.