Mumbai, May 25 -- The domestic equity benchmarks traded with major gains in morning trade, tracking a sharp fall in crude oil prices amid hopes of progress in U.S.-Iran negotiations and the possibility of an eventual deal between the two sides. Improved global risk sentiment and easing energy market concerns also supported investor confidence.

The Nifty traded above the 23,950 mark. PSU Bank shares extended gains for fifth consecutive trading session.

At 10:30 ST, the barometer index, the S&P BSE Sensex, jumped 835.56 points or 1.12% to 76,259.16. The Nifty 50 index zoomed 246.50 points or 1.04% to 23,965.80.

The broader market, the BSE 150 MidCap Index added 0.84% and the BSE 250 SmallCap Index jumped 1.34%.

The market breadth was st...