The Indian equity markets ended Tuesday on a cautious note, as the BSE Sensex and the Nifty posted marginal declines, impacted by the looming Federal Open Market Committee (FOMC) minutes and persistent doubts over U.S tariff issues. The Sensex closed down by 29.47 points, or 0.04%, at 75,967.39, while the Nifty fell by 14.20 points, or 0.06%, closing at 22,945.30.