New Delhi , June 15: Indian equity markets witnessed a strong bullish momentum on Monday morning, opening significantly higher and trading firmly in the green. The BSE SENSEX stood at 76,656.61 points, marking a substantial jump of 1128.66 points or 1.49 per cent. Similarly, the NSE NIFTY 50 climbed 350.40 points or 1.48 per cent to trade at 23,973.30 points.