sorry for the late reply..
in a pan heat some oil, add some ginger garlic paste, salt, black papper, and red pepper to taste. Then add one finely chopped tomato and 3-5 tablespoons of tomato puree. Saute’ it for few mins, then add cream or evaporated milk in. Add few leaves of basil and let it simmer on low heat. Keep stiring when simmering. If you want you can thin out the puree and tomatoes by adding little water before you add any milk/cream. You can also make a redured fat version by using regular milk instead of cream.