International Combustion (India) Limited has closed its trading window for insiders, including promoters, directors, and designated employees, starting October 1st. This closure is ahead of an upcoming board meeting where the financial results for the quarter and half-year will be considered. The trading window will reopen 48 hours after these financial results are declared. The company has also implemented measures, such as freezing PANs at a security level, to restrict trading by designated persons.