The number of times a candidate can appear for the West Bengal Civil Service (WBCS) exam depends on the age limit and category of the candidate. Generally, there is no restriction on the number of attempts for the WBCS exam, but the age limit may vary for different categories. For example, the maximum age limit for General category candidates is 32 years, and for OBC/SC/ST candidates, it is 35 years. This means that candidates in these categories can appear for the WBCS exam until they reach the specified age limit. It is important for candidates to check the latest eligibility criteria and age limit for their category on the official website of the West Bengal Public Service Commission (WBPSC) before applying for the exam.