Effective collaborative learning among UPSC aspirants can be enhanced by establishing specific study groups that focus on shared goals and accountability. Setting a clear agenda for each session encourages focused discussions. Utilizing tools like Google Docs for collaborative research and presentation platforms can aid in information sharing. Regularly rotating leadership roles within the group can foster skills in accountability and public speaking. Additionally, engaging in mock interviews within the group setting can prepare candidates for the personal interview stage, ensuring a well-rounded collaborative learning experience.