Stock market today, Oct. 28 -- Indian stock markets declined sharply on Wednesday as rising crude oil prices dampened investor sentiment ahead of the US Federal Reserve's policy decision later in the day. This comes despite Mukesh Ambani-backed Jio Platforms made a robust debut on the bourses, becoming India's second-most valuable listed company.

The Sensex plunged 995 points, or 1.35%, to an intraday low of 72,603.57, while the Nifty fell 252 points, or 1.1%, to 22,497.70.

Brent crude prices rose 1.4% to $115.40 per barrel after an attack on a refinery in Saudi Arabia, a major oil exporter, raised concerns about supply disruptions and inflation.

V K Vijayakumar, Chief Investment Strategist at Geojit Investments Limited, said the marke...