Chandrima Mercantiles has announced a closure of its trading window for insiders, including Directors, Promoters, and Designated Persons. This restriction on buying, selling, or dealing in the company's shares begins from April 1st. The trading window will reopen 48 hours after the company declares and publishes its audited financial results for the quarter and year. This move is a standard practice to prevent insider trading before crucial financial information becomes public, ensuring fair market practices.