You can search your bus routes in Chennai through Online

You can search your bus routes in Chennai through the following site

http://rab.in/bus/chennai/

Just enter your source and destination then this site will give you the Bus Nos. Chennai Bus Routes lets you search the routes of the MTC buses running in the city of Chennai. Unlike the official site, we also tell you where you can change buses if there are no direct buses to where you want to go.

To get started, fill in your start and destination bus stops. You can also just enter one stop name to get a list of buses that go to that stop.

Type in a part of the stop name and pick from the drop-down list that appears.

http://rab.in/bus/chennai/

Courtesy:
Thanks For the person who made this website