Filing grievances regarding the UPSC examination involves a systematic approach. Candidates should refer to the official website for the outlined procedure and deadlines. Typically, grievances can be submitted through a specified online form or via email, detailing the nature of the complaint and supporting evidence. It’s crucial to adhere to the guidelines provided to ensure proper attention to the issue. Keeping a record of submissions and correspondence is also advisable to track progress. Following up respectfully can help expedite resolution.