ET Intelligence Group: An 80% gain in the stock of Divi’s Labs during the past five months has catapulted the company into the Nifty-50 Index. The Hyderabad-based pharma company, however, is quite different from peers Sun Pharma, Cipla and Dr Reddy’s Labs, and predecessors Lupin and Aurobindo Pharma in the index. It is the smallest pharma company by revenues among all of them, but is trading at one of the highest valuations due to its superior