You can track bus timings on app by December: BEST

The Brihanmumbai Electric Supply and Transport (BEST) will be ready by December, to install GPS in buses and create an app for passengers to trace buses’ location. Twenty-eight lakh passengers can monitor each and every bus, check timings on the mobile app that will predict its arrival at bus stops, by March 2019.

https://www.dnaindia.com/mumbai/report-you-can-track-bus-timings-on-app-by-december-best-2685454

https://www.hindustantimes.com/mumbai-news/get-arrival-time-of-best-buses-at-mumbai-stops-on-mobile-app-from-march/story-SNvQSiDiJqetsuqv2gcDiI.html