Fix ur diet.. cut out all transfat and monosaturated fat. That means no hawker food, rice,bread, sugar, high fat anything..

Replace bad fat with healthy fat. Fat from nuts, plant oils, avocado and olives, dark chocolate are good. Eat more of these in your diet.

Eat no more than 2000 calories per day buy no less than 1600..
Eat within 4 hours of each meal. Eat high protein , high G.I meals.
Incorporate cardio in exercise.

Keep doing this and those abs will begin to show..

sorry to ask, does this mean he took 5 months from the left pic to become like in the right pic?