Bharat Electronics and Trent will replace Divi's Laboratories and LTIMindtree in the Nifty 50 index by September 30. BHEL, ICICI Securities and JSW Energy are among the top stocks set to be excluded from the Nifty Midcap 150, while Berger Paints and Cochin Shipyard are among those included. Vodafone Idea will also be excluded from the Midcap 150 index.