The BSE sensitive index opened marginally up and moved between 4770.11 and 4699.01 before closing at 4740.68 as against yesterday's close of 4686.11, up 1.16 per cent. The BSE-100 index firmed up by 16.50 to 2238.45 from previous close of 2221.95.

The index-based software firm Infosys Technologies, which has the second highest weighting at 12 per cent in the top 30-share BSE index, led the gains and closed at Rs 414.95 higher at a record Rs 9,545.

Brokers said that the fresh buying in infotech sector was generated by the news that Infosys board is considering a stock split- a move likely to broaden its appeal to retailinvestors. The company shares rose in early deals after the company announced it will convene a board meeting on November 29 to consider a reduction in the par value of its shares.

FIIs have reportedly net buyers in select scrips like Tisco, BHEL, Zee Telefilms and select software scrips. Brokers attributed the bull run on the bourses to the FIIs continuous buying spree in it and select economy-related shares. Brokers, however, were cautious for taking long-term positions.

IT giant Satyam Computer topped the list of turnover by registering the highest turnover of Rs 454.91 crore, followed by Zee Telefilm Rs 257.60 crore, Infosys Tech Rs 199.45 crore, Global Tele Rs 144.19 crore and Ranbaxy Lab Rs 137.05 crore.