Indian shares climbed 0.5 percent on Wednesday, led by gains in Reliance Industries Ltd., but Tata Steel Ltd. fell sharply on its plans to fund its takeover of Britain's Corus Group Plc.
Reliance, India's most valuable firm, hit lifetime highs for a third day on speculation the energy to petrochemical firm that is making a foray into retail hypermarkets may make a major announcement.
Avinash Gorakshakar, head of research at Emkay Share & Stock Brokers Ltd., said there was a sharp jump in derivatives positions in Reliance.
"This built-up means that the market is expecting some trigger which could come in the form of either good quarterly results, or some announcement on the retail side," he said.
Open interest in Reliance May futures rose 41.5 percent to 558,450 shares, from Tuesday's 394,650, data from the National exchange showed.
Shares in Reliance, which have the highest weight in the benchmark BSE index, ended 0.7 percent up at 1,486.45, after hitting a record 1,495.
This helped lift the BSE index 0.48 percent, or 65.15 points, to 13,672.19, with 20 of the 30 constituents gaining. The index had dropped 0.65 percent on Tuesday.
In the broader market, 1,315 gainers narrowly beat 1,234 losers on volume of more than 209 million shares.
Tata Steel was the biggest loser on the index, falling 3.3 percent to 511.35 rupees on its plans to raise $4.1 billion, mainly through equity, to help fund the Corus deal.
Expectations of good earnings pushed top lender State Bank of India up 2.65 percent at 1,035.45 rupees, while smaller rival ICICI Bank rose 0.82 percent to 896.90 rupees.
State Bank is expected to report a 22 percent rise in quarterly net profit and ICICI should post 26 percent rise, a Reuters poll showed on Monday.
Export-led Infosys Technologies Ltd., the second-biggest stock on the main index, eased 0.2 percent to 2,077.85 rupees as it extended losses into a third session on concerns a strong rupee could crimp earnings.
But smaller rival HCL Technologies Ltd. ended 7.2 percent higher at 323.70 rupees after it reported a 72 percent jump in quarterly earnings on Tuesday.
The 50-issue Nifty rose 0.67 percent to 4,011.60.
Elsewhere in the region, Karachi's 100-share rose 1.55 percent to 12,189.29 points. Colombo is closed for a local holiday.
STOCKS THAT MOVED
* TV Today Network Ltd. rose 5 percent to 147.15 rupees after Reliance Capital announced an open offer worth up to 1.51 billion rupees ($36 million) to increase its stake in the broadcaster by up to 20 percent.
* Debutant Dish TV India Ltd. ended at 102.55 rupees. The company was spun off from top listed media firm Zee Entertainment Enterprises Ltd.
* Software services firm Prithvi Information Solutions Ltd.
gained 2.5 percent to 292.30 rupees after its net profit for March quarter rose 49 percent.
MAIN TOP 3 BY VOLUME
* Dish TV on 18.8 million shares.
* IFCI Ltd. on 7.7 million shares.
* Himachal Futuristic Communications Ltd. on 7.5 million shares.