21^st Annual Meeting of International Society of Addiction Medicine to be held in New Delhi, India from 13^th to 16^th November 2019. The theme of the conference is “Addiction in a Rapidly Changing World“. We look forward to this opportunity to meet colleagues for shared learning, and a rich social and cultural experience. The conference is being organised by the Department of Psychiatry & National Drug Dependence Treatment Centre (NDDTC), All India Institute of Medical Sciences (AIIMS), New Delhi, India.