Startup Idea : Store Locator

I have searched quite few times on internet there is no app for locating stores nearby. Example if your travelling in some place then u want to know is there any general store nearby or medical store. a map based showing u nearby stores which u need where ever u go. there maybe a few which i hv nt seen bt nt covering globally or whole country jst a specific part in a country. So i hav got into the solution to start in my country India as there many stores in each lane and huge market for business of such app. and planning to go globally after its success. If interested to collabarate with my idea. Ur Welcome to Mail me at : sagarkargathra@hotmail.com (Please keep Subject on mail : Store Locator Idea. ) Thank you. Would love your suggestions in comments Below.