If you live in Delhi, you know how much polluted our city is. Besides pollution, constant construction work along with hard water are the key reasons why you'r car (WHITE) needs exterior rubbing & polishing in every 3 months. In other colors which are either dark or light may require exterior detailing once in six months.
So if you owe a white color car. We recommend you to get it detailed at least once in three months. It will not only make your car look shiny but will also maintain it for long time. Try to wash the car with specific Car wash shampoo to enhance the beauty.