Power and infrastructure company GMR Infrastructure surged 9.11% to Rs 25.15. The stock topped the gainers in the BSE's 'A' group. Power generation stocks extended recent gains on hopes that a recent fall in international coal prices could boost profitability.

According to reports, the spot coal prices globally are down 20-30% from their year ago levels and almost 40% below their peak in early 2011. The benchmark Newcastle, Australia thermal coal is trading around $87 per tonne in June 2012 - a two-year low - as against around $142 per tonne at the beginning of 2011. Similarly, the Indonesian Coal Reference Price is trading around $96.65 in June '12 from a peak of $127 in early 2011, reports added.

Jindal Steel & Power spurted 8.74% to Rs 469.50. The stock was second biggest gainer in 'A' group.

Power and infrastructure company Lanco Infratech climbed 7.40% to Rs 14.94. The stock was third biggest gainer in 'A' group.

Financial software maker Oracle Financial Services Software jumped 7.01% to Rs 2592.95. The stock was fourth biggest gainer in 'A' group. The company announced after market hours on Thursday, 28 June 2012, that it has introduced Oracle FLEXCUBE 12.0, the latest version of the Oracle FLEXCUBE banking platform. The release includes features that enable banks to deliver more personalised and convenient service to customers across all channels. It also offers a harmonized infrastructure and open development environment that allows more flexible deployment options and upgrade paths.

Market was buzzing with rumors last month that the company's parent firm Oracle Corporation will make a delisting offer to minority shareholders. The company has a year to either increase its public shareholding to 25% or choose to delist. As on 31 March 2012, parent held 80.36% in the Indian firm.

In 2010, the government made it mandatory for all listed companies to have a minimum 25% public holding. Listed companies with less than 25% public holding are required to reach the stipulated level by enhancing their public holding by a minimum 5% every year. The deadline for companies to achieve the stated level of public holding is June 2013.

Indiabulls Real Estate rose 5.98% to Rs 61.15. The stock was fifth biggest gainer in 'A' group.