Authors:Sreesankar Ajayan Gouri H Radhika Menon Georg Gutjahr Prema Nedungadi Abstract:The Amrita Awareness Ambassador (AAA) program trains local youth in tribal areas to act as ambassadors to help prevent sub- stance abuse. With the support of the Ministry of Tribal A airs, Govt. Of India, the program is active in 13 states. The present paper analyzes data from the program from 15 villages in Chhattisgarh and Jharkhand. 609 children from these areas participated in a survey prior to the pro- gram and a follow-up survey six month later. Costs of conducting the programs in 2019 and 2020 in these villages are presented. E ectiveness is measured as bringing long-term awareness on substance-abuse to a child who did not previously possess such awareness. The program is found to be cost-e ective for a willingness to pay of INR 2770.