India's BSE Sensex closed about 0.5% down at 83,606.5 on Monday, pulling back after a four-day surge to all-time highs, which led to profit-taking in select heavyweights including financials and Reliance. While the medium-term outlook for the domestic market remains positive, investors await fresh updates on India-US trade negotiations and the upcoming Q1 earnings. Industrial and budget data were the primary domestic reports in focus today. On the corporate front, Axis Bank and Kotak Mahindra Bank were the biggest laggards, each down more than 2%, followed by Maruti, Ultra Tec Cement, Reliance and ICICI Bank. Conversely, shares of Trent (3%), BEL (2%) and SBI (1.8%) ended as the top gainers. For the month, the index advanced about 2.6% - its third consecutive monthly gain - supported by easing tensions in the Middle East and optimism surrounding a potential trade deal between India and the US.