Daily car wash is a huge business abroad and has started to slowly catch up in india.
Not everyone's dhobi, driver, guard etc wash a car, and majority do not have a guard or a driver.
A good idea will be to setup car washes near major IT hubs. People will pay for quick car washes or leave their car for wash and drycleaning during office hours and collect.
You can also upsell services like drycleaning etc and cross sell car care products.
If you ask me, very lucrative business!