Equity benchmark indices Sensex and Nifty ended marginally lower on Monday in tandem with a weak trend in global markets and persistent foreign fund outflows.Photograph: Hemanshi Kamnani/ReutersAlso, uncertainty over an India-US trade deal weighed on investors' sentiment, analysts said.The 30-share BSE Sensex dipped 54.30 points, or 0.06 per cent, to at 85,213.36.During the day, the benchmark declined 427.34 points, or 0.50 per cent, to 84,840.32. The 50-share NSE Nifty edged lower by 19.65 points, or 0.08 ...