Place of ost among various treatment options for opioid dependence sifting through the evidence base Ost capacity building, monitoring and mentoring Oral substitution therapy (“ost”) – law and policy overview Opioid substitution therapy (ost) models of programme design and implementation Opioid pharmacology an overview with emphasis on clinical relevance Methadone maintenance treatment implementation indian experience Innovations in ost formulations and programme delivery Indian experience with ost Experiential account experience in the prison Experiential account experience at a government general hospital Clinical practice guidelines for buprenorphine and methadone based ost Experiential account experience as a private practitioner