Welspun Corp stock climbed as much as 5.16% to hit a fresh record high of ₹2,797.60 on the NSE after the company announced that its associate, East Pipes Integrated Company for Industry (EPIC), a listed entity in Saudi Arabia, had signed a contract with Saudi Arabian Oil Co. (Aramco) for the manufacturing and supply of steel pipes. The contract is valued at more than SAR 771 million, approximately ₹2,000 crore, including value‑added tax. The duration of the contract is six months, and the financial impact will be reflected from Q4 FY2026‑27 through Q1 FY27‑28, as stated by Welspun Corp.

Concord Biotech shares jumped as much as 6.12% to hit an intraday high of ₹1,586 per unit on the National Stock Exchange on Monday, September 21, as the company informed the exchanges that its board of directors is scheduled to meet on September 23 to consider a proposal for a bonus issue. The regulatory filing dated September 19 stated that the board would consider the declaration of bonus equity shares to existing shareholders in accordance with applicable provisions, subject to shareholder approval. The announcement triggered a sharp rally in the stock.

HEG Advanced Materials shares surged 5% to touch the upper circuit level after the opening bell on Monday, September 21, as investors focused on the company’s subsidiary receiving a lithium‑ion battery bank supply order from Indus Towers. As per the exchange filing, HEG Advanced Materials’ subsidiary firm named Replus Engitech Pvt. Ltd received a ₹217.56 crore lithium‑ion battery bank supply order from Indus Towers. The company informed the stock exchanges that the subsidiary had received orders for the supply of Lithium‑Ion Battery Banks.

Dilip Buildcon stock rose as much as 1.4% to hit an intraday high of ₹431.25 per equity share after it was declared the lowest (L1) bidder by REC Power Development and Consultancy Limited (RECPDCL) for an order worth ₹1,625 crore. The order, for the development and operation of a 400 KV GIS switching station in Solapur/Paranda, Maharashtra, is valued at ₹1,625 crore including GST and will be completed within 24 months from the effective date, after which it will be valid for 35 years from commercial operation date.

The SENSEX surged as much as 0.8% to hit an intraday high of 74,907.26, while the NIFTY50 climbed as much as 0.4% to touch the session’s peak of 23,437.70. These gains were driven by buying in realty, fast‑moving consumer goods and pharmaceutical stocks, and were supported by a decline in global crude oil prices and a positive flow of foreign institutional investors. The indices closed higher, reflecting a robust market mood.

At 1:36 PM, the S&P BSE SENSEX advanced by 608.89 points, or 0.82%, to trade at 74,903.85. Meanwhile, NSE’s NIFTY50 stood at 23,433.90, reflecting an 87.50‑point, or 0.37% jump. On Friday, foreign institutional investors purchased shares worth ₹599.54 crore, while domestic institutional investors bought equities worth ₹1,019.69 crore on a net basis, according to exchange data. The top gainers of the NIFTY50 index included HCL Technologies, HDFC Life Insurance Company, SBI Life Insurance Company, ITC and Sun Pharmaceutical Industries, while Bharti Airtel, Adani Ports and Special Economic Zones, Bajaj Finance, Wipro and Adani Enterprises were among the top losers.