What are the best and cheap foods for reducing the fat?

I have lost 20kgs and my diet is cheap. There are many foods high in nutrition value and very cheap too:

1. Eggs : Online grocery shopping sites sell it for 3–4 rs. / Piece.

2. Green Vegetables, Sweet Potato : Spinach which is high in minerals is cheap and very good for reducing fat. Sweet potato is full of vitamins and fiber. All green leafy vegetables are low in starch content too.

3. Whole wheat Dalia, Millets, Oatmeal : They are complex carbs which assists in fat reduction plus it's cheaper than other grains. Oats is rich in minerals and high in fiber.

4. Flaxseed : This is a super seed which not only assists fat reduction but also very good for your heart. It lowers blood cholesterol level.

5. Lemon, Ginger, Mint, Cucumber: Combination of these 4 infused in water overnight works wonder on your body. It's a great way to detoxify. They all are cheap.

6. Yogurt, curd : It's a myth that while losing fat you must avoid dairy products. Yogurt is good in calcium and facilitates fat loss.

7. Green Tea : Replace it with sugary beverages and drink it twice a day. It reduces the stubborn belly fat.

All of the above along with 3–4 liters of water will do the magic on your body!

Consult a nutritionist for more options. All the best!