Google has been sending GPS kits to India that enable locals to make more detailed maps of their area. After the data has been uploaded and then verified against other participant's data it becomes a part of the map. The process is very reminiscent of what Open Street Map, the community map-building project, has been doing. The biggest difference is that the data (to my knowledge) is owned by Google and is not freely available back to the community like it is with OSM.
Google Uses Crowdsourcing To Create Maps In India | Heykuki News