Stock Market Live News:- Sensex ends off day’s low points, Nifty above 10,550; IT surges # TCS shares surge nearly 7% on strong Q4 earnings # Tata Steel-Thyssenkrupp merger delayed by six months # Ready to pay Rs500 crore more for Binani Cement: UltraTech # P&G to acquire Merck India business for Rs1,300 crore #