ICICI Prudential Mutual Fund launches ICICI Prudential Nifty LargeMidcap 250 Index Fund ICICI Prudential Mutual Fund launches ICICI Prudential Nifty LargeMidcap 250 Index Fund NFO opens on February 22, 2024, and closes on March 7, 2024 Karan Dsij / Thursday, February 22, 2024 / Article rating: 4.4 When it comes to calendar year returns, the Nifty LargeMidcap 250 index has outperformed Nifty 100 index 7 times in last 10 years.