 Diabetes prevention programmes conducted in various ethnic and racial populations have conclusively demonstrated that lifestyle modification LSM focussed on caloric restriction and increased physical activity can prevent or postpone the onset of T2DM. The Indian Diabetes Prevention Programme-1 IDPP-1 conducted by our group established that LSM is an effective tool for the primary prevention of T2DM in Asian Indian subjects 1. But the major hurdle for any clinical trial is to disseminate the intervention principles at a community level is often proved to be very difficult. The main objective of this prevention programme is to determine whether individualized messages on LSM diet and physical activity by mobile phone-based message delivery system can help educate and motivate subjects with a high risk for developing type 2 diabetes to adhere to LSM and thereby improve glucose tolerance. 