Kuthukalvalasai is a village in Tenkasi tehsil in district of Tirunelveli, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Kuthukalvalasai was 9,917 which includes 4,988 males and 4,929 females. Kuthukalvalasai covers 1065.58 ha area. Pincode of Kuthukalvalasai is 627803.