Tamil Nadu Public Service Commission invites online applications from eligible candidates for direct recruitment to the posts in the Combined Civil Services Examination - I (Group I Services). Post-wise Vacancies (Total: 26): 1. Deputy Collector: 12 Vacancies 2. Assistant Commissioner (Commercial Taxes): 2 Vacancies 3. Deputy Registrar of Co-operative Societies: 3 Vacancies 4. District Registrar: 8 Vacancies 5. Assistant Commissioner of Labour: 1 Vacancy Selection Process: Three stages - (i) Preliminary Examination, (ii) Main Examination, and (iii) Interview. Advertisement No: 736. Preliminary Exam Date: 06-09-2026. Application Correction Window: 02-08-2026 to 04-08-2026.