Mumbai, June 9 -- The key equity indices witnessed modest gains in afternoon trade, buoyed by the Reserve Bank of India's firm monetary policy stance and positive global sentiment. The Nifty traded tad above the 25,100 level. IT shares extended gains for the fourth consecutive trading session.

At 14:30 IST, the barometer index, the S&P BSE Sensex, added 239.15 points or 0.29% to 82,428.14. The Nifty 50 index rose 100.65 points or 0.40% to 25,103.70.

The broader market outperformed the frontline indices. The S&P BSE Mid-Cap index rose 1.07% and the S&P BSE Small-Cap index added 1.12%.

The market breadth was strong. On the BSE, 2,739 shares rose and 1,393 shares fell. A total of 152 shares were unchanged.

The NSE's India VIX, a gauge of...