Massage with Olive oil or almond oil.
Apply Raw Milk on skin and leave all the night. Next morning wash with warm water.
Take some oatmeal ( or joo ka atta) and mix this in yogurt, make thick paste and apply on dark skin for 30 to 45 minutes. Then wash with simple water.
Orange juice + turmeric powder mix and apply on dark body then leave all the night. Wash in next morning.
Drink a lot water.
Eat Vitamin C tablet. daily