Reddivalasai is a village in Uthangarai tehsil in district of Krishnagiri, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Reddivalasai was 1,327 which includes 655 males and 672 females. Reddivalasai covers 249.93 ha area. Pincode of Reddivalasai is 635307.