In Bombay the street is both completely shared public space and there are many people who live on extremely meager earnings. We are talking about less than $1 a day. Which means that all sorts of things which might happen behind closed doors in the West happen out on the street. So it is not uncommon to have barbers or shavers on the street; or fruit stands or drink stands on movable carts; or people who will weigh you for a Rupee.
Or in this case, a professional ear cleaner, who will clean your ears for a low, low price.
All part of an informal economy which helps keep Bombay running.