Mumbai, Feb. 4 -- The key equity benchmarks eked out modest gains on Tuesday, extending their rally to a third straight session. Sentiment remained supported by the landmark India-US trade agreement, which helped ease external uncertainty. Gains, however, were capped as rising geopolitical tensions between the US and Iran kept risk appetite in check. The Nifty 50 closed above the 25,750 level, led by buying in consumer durables, energy and auto stocks, while IT shares lagged amid a global technology selloff.

The S&P BSE Sensex added 78.56 points or 0.09% to 83,817.69. The Nifty 50 index rose 48.45 points or 0.19% to 25,776. In three consecutive trading sessions, the Sensex added 3.83% while the Nifty jumped 3.82%.

Adani Ports & SEZ (up ...