Kotak Mahindra Bank share hits new 52-week high even as Sensex falls 500 pts; Krsnaa, Sansera at 52-week lows

BSE Sensex and Nifty 50 were languishing near the day lows on the back of sell-off in the index heavyweights such as RIL, Infosys, Asian Paints, and TCS.