Adani Ports, M&M, TCS, Eternal, and Power Grid Corp. were among the top gainers in the NSE Nifty 50 on Monday.Hero MotoCorp, Tech Mahindra, JSW Steel, HDFC Life Insurance Co., and Tata Steel were among the top laggards.The NSE Nifty 50 closed 0.14% lower at 24,716.6, and the BSE Sensex closed 0.09% down at 81,373.75 on June 2.The market saw HDFC Bank Ltd. and Reliance Industries Ltd. dragging down the benchmark equity indices for the second consecutive session.