MUMBAI (Reuters) - The BSE Sensex rose as much as 2 percent as energy firms such as Oil and Natural Gas Corp and Reliance Industries rallied after the government approved a hefty increase in gas prices.
Sentiment was also boosted as the rupee gained on Friday, further retreating from a record low hit on Wednesday.
ONGC shares were up 1.6 percent at 12:45 p.m., while Reliance was up 3 percent.
The BSE Sensex and Nifty were up 2 percent each.
(Reporting by Rafael Nam; Editing by Sunil Nair)