Go for high intensity cardio exercise which burns more total calories and more fat as well.

You should cardio at least 3-4 times per week, for at least 30 mins per session, to burn off fat.

Here’s a guide on the best way to cardio to burn off fat:
http://www.perfect-body-toning.com/burning-fat.html
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When you do aerobic exercise in the morning, your metabolism stays elevated for a period of time after the workout is over. If you do aerobic exercise in the evening, you burn calories during the session so you definitely benefit from it, but you fail to take advantage of the "afterburn" effect because your metabolic rate drops dramatically as soon as you go to sleep
Aerobic training such as walking, riding a stationary bike, or running is a good way to accelerate the fat burning process, as long as it is not overdone and as long as it is used only in addition to a good weight training program. It should never be used as a substitute for weight training since it does not permanently increases your metabolism and since it does not has the ability to re-shape your body.
The best time to perform cardiovascular exercise is first thing in the morning on an empty stomach after drinking 16 to 24 ounces of water in order to prevent dehydration. When performed at this time you burn 300% more body fat that at any other time in the day because your body does not has any glycogen (stored carbohydrates-sugar) in the system to burn. Therefore, it has to go directly into the fat stores in order to get the energy necessary to complete the activity.

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