Indian equity market closed on a flat note in the volatile session on Thursday after hitting record highs. At the closing bell, the Sensex was up 33.40 points at 74,119.39, and the Nifty was up 19.50 points at 22,493.50. Top Nifty losers of the day were M&M, BPCL, Reliance Industries, Axis Bank and ICICI Bank.