Mumbai: Sobering down after the previous day's surge following an accommodative monetary policy stance of the Reserve Bank of India (RBI) in its bi-monthly policy review, key Indian equity market indices provisionally closed flat on Wednesday. The 30-scrip Sensitive Index (Sensex) provisionally ended 10.99 points or 0.04 percent up. The wider 50-scrip Nifty of the National Stock Exchange (NSE) also ended up 6.60 points or 0.08 percent at 8,273.05 points. The BSE Sensex, which opened at 27,085.24 points, ended the day's trade provisionally at 27,020.66 points (at 03.40 p.m.) -- up 10.99 points or 0.04 percent from the previous day's close at 27,009.67 points. The Sensex touched a high of 27,105.41 points and a low of 26,973.71 points in the intra-day trade.