Mumbai, June 25 -- Indian equity markets opened on a firm note, with most sectors trading in the green on Thursday. Sensex surged 400 points higher and the Nifty gained above 24,000 mark building on yesterday's rally setting a strong tone for today's trade.

Sensex opened with a gap-up at 77,391.07, and was trading at 77,409.75, up 418.53 points or 0.54 per cent, while Nifty was trading at 24,157.75, up 136.10 points or 0.57 per cent at the time of writing.

Sectoraly, Nifty Auto, Realty and Cement led gains, surging over a per cent. On BSE, IndiGO, Maruti, M&M, SBI, Hindustan Unilever, Trent, ICICI Bank, Adani Ports, Reliance, Kotak Bank, Axis Bank, TCS, LT among others gained, while Power Grid, Eternal, BEL, Infosys, Titan among others ...