Stock markets witness bull-run, Sensex gains over 900 points

New Delhi, Oct 29 (UNI) Indian stock markets on Thursday staged a strong rebound, with the Nifty closing above the 22,900 mark. Broad-based buying was seen across sectors, barring auto stocks. The market opened on a muted note but gained momentum as the session progressed, led by IT and banking stocks. At close, the Sensex was up 905.01 points or 1.24 percent at 74,151.04, and the Nifty was up 237.90 points or 1.05 percent at 22,936.75. Nifty midcap and smallcap indices rising 1 percent each. Markets sentiment was supported after the US Federal Reserve kept its key policy rate unchanged…