Many must have seen the stops for the Hopon/Hopoff tours introduced by TTDC (Tamilnadu Tourism Development Corporation) here, this is the bus the tourism department uses for these tours.
Good idea to have used the one-way vision vinyls on the bus windows to seemlessly allow view from inside and nothing visible of inside from out. (similar to the new Volvo sticker on the window glass).
Though its meant to attract tourists, as a local i’d also want to experience these tours which are famed at Europe.