ValvaithankoshtamValvaithankoshtam is a panchayat town in Kanniyakumari district in the Indian state of Tamil Nadu.DemographicsIndia census, Valvaithankoshtam had a population of 16,698. Males constitute 50% of the population and females 50%. Valvaithankoshtam has an average literacy rate of 99%, higher than the national average of 59.5%: male literacy is 100%, and female literacy is 99%. In Valvaithankoshtam, 11% of the population is under 6 years of age.