All locations are NOT accurate, I did google and found the co-ordinates from Wikipedia.org, wikimapia.org, and guessed the location based on mapmyindia.com and google maps. If anybody has got the actual co-ordinates for these location, please let me know I can update it to reflect the actual location. As I mentioned earlier, if somebody could record the GPS locations using GPS device on next trip, it will plot the route accurately, not sure whether you guys have access to it.
Google maps allows to collaborate, so if anybody interested in adding content, correcting the location, enhancing it anyway, please let me know. As of now this is unlisted to public, once we make it public, if people search on any content we put, the link will show and people can view the map. We can upload to google earth community and others will see the location/content if they navigate using Google earth.