India's BSE Sensex deepened losses to close about 1.5% down at 82,498 on Thursday, the lowest since early February, halting a three-day winning streak. The market experienced massive selling, with all index components posting declines, as rising geopolitical tensions and higher crude oil prices hurt investor sentiment. Traders also booked profits in heavyweights from the banking and FMCG sectors, adding to the downward pressure. Sentiment was further dampened by uncertainty over the US Federal Reserve’s rate-cut path, continued rupee weakness and subdued foreign institutional activity amid the Lunar New Year holiday across key Asian markets. Meanwhile, attention shifts to India’s preliminary PMI for February, due Friday, which will a first glimpse of the country's economic performance. Among equities, Aviation major IndiGo emerged as the top loser, dropping 3.3%, followed by Mahindra & Mahindra (-3%), Ultra Tech Cement (-2.9%), Trent (-2.9%), BEL (-2.8%) and Eternal (-2.6%).