Later, it was quoted below 13,000 mark at 12,723.73, with a major loss of 136.70 points. The Sensex recorded the day's high of 13,008.47 and a low of 12,709.07 points. The S &P CNX Nifty of National Stock Exchange (NSE) opened flat at 3,921.85 points. It hit the low and high of 3,865.95 and 3,969.65 points respectively, during the mid-morning session. Brokers said ''Key benchmark indices slipped in the red after firm start, as index heavyweight Reliance Industries and banking pivotals dropped, coupled with the rupee dropped to a fresh five-year low against the dollar. Larsen &Toubro turned one each one ex-bonus from Wednesday, Oct 1.
Asian markets were trading mixed on Wednesday, Oct 1, as Japan's Nikkei and Taiwan's Taiwan Weighted Average rose between 0.82 per cent and 1.07 pc. Stock markets in countries like China, Hong Kong and Singapore were closed today for holidays. The BSE Mid-Cap index was up 0.02 pc at 4,799.20 and the BSE Small-Cap index was up 0.43 pc at 5,601.55.
The market breadth was positive on BSE with 765 shares advancing as compared to 652 that declined, while 36 remained unchanged in mid-morning session. Reliance Industries fell 1.98 per cent to Rs 1,909. Banking shares slipped on selling pressure. State Bank of India down 2.65 pc to Rs 1,425. It was followed by ICICI Bank (down by 1.22 pc to Rs 528.30, and HDFC Bank down by 0.41 pc to Rs 1,224).
Among other losers, Sterlite Industries declined 2.47 pc to Rs 417.85, Reliance Communications fell 2.07 pc to Rs 327, Bharti Airtel down 1.92 pc to Rs 770.
However, Ranbaxy Laboratories rose by 3.79 pc to Rs 257.15. It was followed by Grasim Industries (up 2.22 pc to Rs 1,725), Jaiprakash Associates (up 1.89 pc to Rs 113.20) and Maruti Suzuki India (up one pc to Rs 693.65) -- they all edged higher among the Sensex pack.
Foreign institutional investors (FIIs) were net equity buyers worth Rs 14.16 crore, while mutual funds bought shares worth Rs 394.11 crore yesterday, according to provisional data on NSE.