Markets opened cautiously higher on Wednesday, with the Sensex rising 247.16 points or 0.29 per cent to ₹84,913.44 and the Nifty gaining 69.35 points or 0.27 per cent to 25,909.00 at 9:40 AM, as investors awaited the crucial US Federal Reserve monetary policy outcome later tonight. The Sensex opened at ₹84,607.49 against its previous close of ₹84,666.28, while the Nifty opened at 25,864.05 against its previous close of 25,839.65.

Most sectors traded in the green, though the overall undertone remained cautious with global investors focused on the Fed's commentary on growth and inflation outlook to assess the future trajectory of interest rates. Markets broadly expect a 25 basis points rate cut from the Fed on Wednesday.

Among the top gainers on the Nifty50, Adani Ports led with a 1.

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