shapefile for mumbai city area or section wise

please don't kill me if this question is listed anywhere else, i really searched high and low to find answer to this question.

i am working on a project in which i need to plot data on Mumbai city map section wise or area wise but i am not able to get Shapefile for the same. can anyone please provide me the link where i can get this Shapefile or guide me on creating one using QGIS.I mentioned QGIS because i know a little about OGIS and hence it will save time.Also i tried certain links which are listed below. but i couldn't find what i need.Guys it would be a great help because i really need this and i am stuck on this from few days.Also i mentioned shapefile because these are easy to manipulate, later i will convert it into geoJSON and work on it so if geoJSON files are there then it would also help. An image is also provided below.

Note: only the important links are listed: 1. http://ift.tt/1ysNCJn 2.http://ift.tt/1jOi21j 3.http://ift.tt/1ysNAkP