A randomized open label clinical trial is planned in 4 worksites. The total study duration is 18 months. Four workplace sites will be divided into two active intervention and two control sites. Intensive awareness generation activities for overweight and obese employees and a general awareness health, nutrition and physical education programme for the rest of the employees. The study subjects will be part of awareness sessions which will be conducted in the 6 month intervention period. Besides group sessions individual diet charts will also be worked out by a trained nutritionist. Physical activity advice will be provided to them keeping their specific requirements in mind. Pedometers will be provided to them and they will be encouraged to walk for 15 minutes in pre-lunch period. Leg movements at the desk will also be encouraged.