I would like to know what things to do in Chennai. I will be in Chennai with my parents, who during the day would be busy with business work and in the afternoon until the next morning they would be free. They don't have any plans, and I thought I would take charge of organising some time out and therefore need to know what things to do in Chennai. We are in Chennai for a total of 5 days, so provide all you know about the things to do. I am not expecting too much from Chennai, but at least it would be something.