Your target weight should be below 62 kg. Your BMI is above 30. There is no easy and fast shortcut for lossing weight. It requires lots of efforts and patience from you. If you try to lose weight fast you will get stretch marks. Basic things are Taking less calories, that is eating less fats (oil, ghee, paneer. cream) and carbohydrates (wheat and rice). Do not stay hungry. Fill up your stomach with salads, vegetables, fruits, naturally available foods. Exercise. Abdominal muscle strenthening exercises tone up your belly muscles and allows faster weight loss from stomach. Lying on your back and cycling in air is a good way of toning up your stomach.