That's interesting! What can you tell me about the economy? 
 What else can you tell me about it? 
 Wow. What else can you tell me about the history? 
 Recent estimates of the economy of the entire Chennai Metropolitan Area range from $78.6 to $86 billion (PPP GDP) ranking it from fourth to sixth most productive metro area of India 
 Hello, I would like to know about Chennai.
Recent estimates of the economy of the entire Chennai Metropolitan Area range from $78.6 to $86 billion (PPP GDP) ranking it from fourth to sixth most productive metro area of India