New Delhi, Feb. 3 -- Indian equity markets opened sharply higher on Tuesday, buoyed by optimism over the India-United States trade agreement that sharply reduces tariffs on Indian exports to 18 per cent, easing a key source of uncertainty for investors.

With trading underway, the benchmark Sensex was at 84,016 at 9:28 am, up 2.87 percent, reflecting strong early buying across sectors.

The breakthrough trade deal has lifted sentiment after months in which uncertainty over global trade conditions contributed to Indian equities underperforming their Asian and emerging-market peers.

In early offshore trading, Gift Nifty futures were around 26,166, signalling a strong positive start for domestic benchmarks. Gift Nifty is a US dollar-denominat...