I have a three day stop over in Chennai after which I will be joining my family Coimbatore. During my stay in Chennai I want to cover a few shopping places which include T.Nagar, Besant Nagar and St Thomas Mount. Would this be possible? I would like from forum members who know about Chennai to where we should visit first, so that the trip would be planned peacefully and no time would be wasted. Also please suggest any places which are a must see.