Indian equity indices opened higher on Friday, with NSE Nifty 50 up by 0.31% and BSE Sensex up by 0.29%. Bank Nifty also opened higher by 0.34%. Small and mid-cap stocks also opened in the green, with Nifty Midcap up by 0.29%. Retail investors’ steady inflow into mutual fund SIPs has strengthened DIIs in the FIIs vs DIIs tug of war.