The science of yoga is an ancient one. It is a rich heritage of our culture. Several older books make a mentionof the usefulness of yoga in the treatment of certain diseases and preservation of health in normal individuals.The effect of yogic practices on the management of diabetes has not been investigated well. We carried out well designed studies in normal individuals and those with diabetes to assess the role of yogic practices on glycaemic control, insulin kinetics, body composition exercise tolerance and various comorbidities like hypertension and dyslipidemia. These studies were both short term and long term.