Sensex closes at 50,731.63 and Nifty 14,924.25

(G.N.S) Dt. 5 Mumbai 30-share BSE benchmark briefly crossed the 51,000-level, before ending 117.34 points or 0.23 per cent higher at its fresh closing record of 50,731.63. 50-share NSE Nifty scaled the 15,000 mark during the day but shed some ground to close at its all-time high of 14,924.25, up