The BSE Sensex ended at 19,691, down 265 points from the previous close. It had earlier been as low as 19,342 after opening at the day's high of 19,841.

The NSE Nifty on the other hand lost 75 points to end at 5,934 after touching a day's low of 5,824. It had opened at 5,971 and touched a day's high of 5,973.

The 50-share S&P CNX Nifty settled at 5,934.75, after shedding 75.25 points or 1.25%. Nifty November futures saw an addition of 4.18% or 0.83 million (mn) units, taking the total outstanding open interest (OI) to 20.71 mn units.

For Nifty calls, 6000 strike price (SP) from the November series was the most active call with a contraction of 1.66 mn or 33.01%. Among Nifty puts, 5900 SP from the November month expiry was the most active put with a contraction of 0.18 mn or 2.81%. The maximum Call OI outstanding was at 6000 SP (6.71 mn) and that for Puts at 5900 SP (6.46 mn).The respective Support and Resistance levels are: Resistance 5,997.08 Pivot Point 5,911.02 Support 5,848.68.The Nifty Put Call Ratio (PCR) OI wise stood at 0.74 for November-month contracts.

Tata Power, SBI, Bharti Airtel, RCOM, Sterlite Inds, Hidalco, ACC, ONGC, ITC, Power Grid, SAIL, Suzlon, HDFC, IDFC, JP Associates, ACC, Ambuja Cements, Tata Steel, NTPC, ICICI Bank and Sesa Goa were among the major losers in the Sensex and Nifty. Maruti Suzuki, HUL, Sun Pharma and Bajaj Auto were among the notable gainers in the Sensex and the Nifty.