If you want to reduce fat in sepecific area , you should target them with particular exercise of that area.

May control on your daily intake of calories on the normal level.

One of the best ways to reduce fat on stomach is to do cardio workout and burn more calories than one eats. Just doing strength exercises is not enough to reduce fat, cardio is a must. Any type of cardio like treadmill, elliptical, swimming and walking will help.

Riding a bicycle will also help to reduce fat of your body. Do Riding three times within the week for an hour. Do this continue for 3 months after one month you will get slight better result.

Some yoga like Kapalbhati Pranayam may also help. Do this daily early in the morning.

You should also try different types of diet supplements that helps you to burn the fat with increasing the rate of metabolism.

Also try the home remedy for reduce the stomach :
Drink hot water with lemon juice and also add some pinch of sugar to make slight sweet. Lemon helps to control your weight.