Markets trade firm, Sensex up 0.4% (NDTV Profit)

The markets opened firm on Thursday ahead of the F&O expiry with the benchmark index surging 0.4 per cent or 66 points to trade at 15,765 levels. In the broader markets, the Nifty moved up 0.2 per cent or 8 points. It is hovering at 4,597 levels.