Indian equity benchmark -- Nifty ended flat with negative bias on Thursday. Index made a positive start following positive cues from other Asian markets. But in a while, index started wavering in red and green terrain as traders were cautious with persistent foreign fund outflow. As per exchange data, foreign institutional investors offloaded equity worth Rs 5,834.90 crore on May 6. Besides, cautiousness also prevailed in the markets as S&P Global’s ‘India Forward’ report, jointly done with Crisil, lowered India's Gross Domestic Product (GDP) growth estimates for the current financial year (FY27) to 6.6 per cent from 7.1 per cent projected earlier. However, in second half of the session, index staged some recovery and entered into green terrain as felling crude oil prices on optimism that the U.S. and Iran were close to an agreement to end the conflict that caused the largest energy supply disruption in history. But in last leg of the session, index re-entered into red terrain and ended tad below neutral line.