Mumbai, Nov. 3 -- The key equity indices ended with major gains on Tuesday, extending their gaining streak to a fourth consecutive session, amid easing crude oil prices, continued foreign institutional investor buying and growing expectations of a review of long-term capital gains tax. Finance Minister Nirmala Sitharaman's remarks that the government would consider requests to review capital gains taxes on foreign investors further lifted sentiment. A weaker global AI trade, a stronger rupee and value buying in large-cap stocks also supported the market. Investors remained cautious about geopolitical developments involving Iran, while analysts cited improving valuations, strong Q2 earnings and renewed foreign fund inflows as potential dri...