Hello doctors. I'm a 22 year guy from India. I'm 15 kgs overweight. Is there a good website that guides me for a good diet and exercise???

Atkin. You can try weight-watcher website or Atkin. The main thing is to decrease Calorie intake, adjust diet to get more calorie from Protein rather than Carbohydrates, increase fiber intake, drink enough water and also exercise 3-4 times a week for at least 60 minutes a day.
High protein diet,ex. weight loss occurs with high protein diet,aerobic exercise.avoid carbohydrates.check thyroid function,diabetes,family history of obesity.
Do your self. There are plenty of websites and techniques available. Bottomline is that determine yourself, control your diet and create our own schedule to lose weight for your target goal. Many websites available, go throught it and select which fits for you..
Beware of diets. stop eating processed foods and limit meat intake. exercise 3 -5 times per week. check out this web site:http://www.drfuhrman.com/