TNPSC Group 4 Exam: TNPSC Group 4 Examination or Tamil Nadu Civil Service Commission Examination is conducted to recruit suitable candidates for different government departments in Tamil Nadu. The total number of vacancies for the TNPSC exam is 5255 and the exam attendance is once a year. The TNPSC Group 4 exam is a merit exam in which candidates are selected to fill vacancies in the following departments.