What are the top areas in Chennai for rent?

I would Suggest Perungudi:

Situated on the stretch of Old Mahabalipuram Road, Perungudi is another great option to choose for a profitable real estate investment. With access to important areas of the city, it is also home to various IT establishments and the same reason brings in numbers of software and IT professionals looking for settlement in the area. Wide roads in the OMR stretch cuts down the chances of traffic congestion in the area and a main road easily connects you with Taramani and Thiruvanmiyur for conveneint accessibility.