HDFC Bank, The S&P BSE Sensex dropped 314 points, or 0.37%, to close at 84,587 while the NSE Nifty 50 declined 75 points, or 0.30%, to settle at 25,884.In the 30-share Sensex pack, only BEL, SBI, Sectorally, Nifty IT, Auto, FMCG and Oil & Gas were the top drags, falling up to 0.6% on November 25. Infosys, TCS, On the flipside, Nifty PSU Banks were the top Canara Bank, Live EventsExpert views "The domestic market witnessed sharp volatility on monthly expiry day, driven by a weakening INR and continued FII o ...