Here is one forum where you can find out any developments in any city across the world. Its the SkyscraperCity Forum. This forum is constantly updated by the citizens who do not give out false news about any developments as the politicians do.
Click Here to visit the Chennai page of the forum. There are many topics such as Flyover projects, transport projects, IT park projects, etc. Every development of the city can be noted here along with some beautiful pictures. The picture of the models or every IT parks and every fly-overs are also posted. This forum is the best way to find out the development of your city.