How can i reduce 10-15 kgs within 3 months? is walking everyday for half an hour and avoiding oily food food is enough?

Likely will require: More than that for this goal. Recommend that calories burned> calories in. Drinking at least 8- 8 ounce glasses per day is important for both hydration and weight control. Try to get in whole foods (fiber) as well as 5 servings of vegetables and 4 servings of fruit per day. Physical activity is essential. Aim for at least 30 minutes of aerobic activity at least 5 days per week ; don’t forget.