India's BSE Sensex closed about 1.2% firmer at 83,755.9 on Thursday, a level not seen since October 2024 and keeping the winning streak alive for a third day. The rally was driven by growing optimism following easing geopolitical tensions and strong buying in heavyweight sectors such as financials and also metals amid a softer US dollar. Reliance Industries extended gains after analysts projected robust earnings growth in the June quarter. Continued foreign institutional inflows also lent support to the market. On the domestic economic front, the Reserve Bank of India, in its latest monthly bulletin, emphasized the continued resilience of the Indian economy in the face of persistent global uncertainty. Among the prominent gainers, Tata Steel rose over 2% to the top of the index after reports of capital infusion in its overseas arm. Adani Ports, Eternal, Bharti Airtel, Bajaj FinServ, Bajaj Finance, NTPC and UltraTech Cement were also among the top performers, adding between 1-2%.