Private sector lender IDFC Bank will be included in the NSE's Nifty Midcap 50 index from November 15.
Havells India, on the other hand, will move out of the index.
India Index Services & Products, which maintains Nifty indices, said in a statement that the changes would become effective from November 15, 2016.
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Earlier this month, IDFC Bank was included for trading in the securities lending and borrowing segment.
Prior to that, the exchange had announced that it would launch futures and options (F&O) contracts in IDFC Bank, DCB Bank from September 30.
There are currently over 200 securities available in the F&O segment for trade.