Mumbai, April 22 -- The key equity benchmarks traded with decent gains in mid-morning, supported by strong economic data and RBI's move to ease liquidity norms. Investor sentiment remained positive, aided by continued foreign institutional inflows. The Nifty traded above the 24,150 level.

PSU Bank shares jumped as the Reserve Bank of India (RBI)'s measured easing of liquidity norms bolsters banking sector sentiment, the RBI announced that retail deposits accessed via internet and mobile banking will attract an additional run-off factor of only 2.5%, instead of the steeper 5% initially suggested in last year's draft guidelines. The index soared for the sixth consecutive trading session.

At 11:25 IST, the barometer index, the S&P BSE Sens...