4:01 PM - The market saw a volatile session and ended flat today ahead of the rail budget tomorrow. Sensex closed at 14658, up 13 points and Nifty at 4348, up 7 points from the previous close. CNX Midcap index was up 0.37% and BSE Smallcap index was up 0.32%. The market breadth was positive with advances at 703 against declines of 513 on the NSE. The top Nifty gainers were GAIL, ONGC and Tata Steel, while losers were BHEL, Punjab National Bank and Suzlon.