If some one wants to start a business, the most important thing which he will require is a official business address to complete his GST registration in Mumbai. Getting a physical office will be difficult for startups, small businesses or freelancers, because of cost. But now virtual office business address at prime location in Mumbai. The requirement of virtual office is increasing every year. And the usage of virtual office is not limited to small businesses, but even big organizations have understood the cost advantage of virtual office and their services.