Stock market news, Oct. 21 -- Equity benchmark indices Sensex and Nifty 50 concluded higher on Monday, marking their fourth consecutive day of gains, propelled by investments in blue-chip Reliance Industries and ongoing inflows from foreign funds.

A significant rally in global markets further fueled optimism among investors.

The Sensex rose by 411.18 points, or 0.49%, closing at 84,363.37. At one point during the day, it surged by 704.37 points, or 0.83%, reaching 84,656.56. The Nifty 50 increased by 133.30 points, or 0.52%, to settle at 25,843.15.

Market analysts noted that this shortened trading week will feature a range of events, with several important factors poised to draw investors' attention.

On October 21, the one-hour Diwali...