Choosing a widely popular optional subject for the Mains Examination can have both advantages and disadvantages. On one hand, popular subjects often have more resources, guidance, and a community of aspirants, which can facilitate preparation. However, competing against many candidates in a popular subject can make it challenging to score high marks. As a result, aspirants may face heightened pressure and competition. It’s important for candidates to select an optional subject not just based on its popularity but on their personal strengths and interests, ensuring genuine engagement and understanding of the material.