For a proprietorship firm, there is no separate registration required. Moreover, there is no procedure for obtaining name approval (as in the case of companies).  You would have to just open a bank account with the firm name. But in case your business is liable for VAT and / or Service Tax registration, then you must obtain VAT and / or Service Tax registration. Further, for a sole proprietorship firm, no separate income tax PAN is required. The PAN of the proprietor will be the PAN of the firm and proprietor will have to file income tax return in his personal name.