Rail Vikas Nigam Limited (RVNL) has announced the closure of its trading window for dealing in the company's shares. This closure is in compliance with SEBI (Prohibition of Insider Trading) Regulations, 2015, and the company's Code of Conduct. The trading window will be closed for all designated persons and their immediate relatives starting from Thursday, January 1, 2026. It will remain closed until 48 hours after the announcement of the financial results for the quarter ended December 31, 2025, to the stock exchanges. The specific date for the Board meeting to consider these financial results will be intimated in due course. The company has also provided a link to its Insider Trading Code on its website for public access.