Frontline equity indices ended in green amid volatile sessions on Thursday as buying was seen in the heavyweights IT counters.
At closing, Sensex settled at 81,765, up by 809.53 points, or 1 per cent, while the Nifty ended at 24,708.40, up by 240.95 points, or 0.98 per cent.
Investors' optimism regarding the upcoming RBI interest rate decision is being seen as a major reason for this rally in the stock market.
The RBI monetary policy meeting (MPC) started on December 4 and RBI Governor Shaktikanta Das will announce the MPC decisions on December 6.
Intraday, Sensex touched 82,317 on the higher side and 80,467 on the lower side.
As per the market experts, the market experienced a sharp recovery from the day's low, closing with strong gains. A positive turnaround from FIIs for the past couple of days to India in expectation of a dovish monetary policy by the RBI supported the sentiment., they added.