Kottai is a village in Vandavasi tehsil in district of Tiruvannamalai, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Kottai was 2,343 which includes 1,173 males and 1,170 females. Kottai covers 542.98 ha area. Pincode of Kottai is 604403.