Visit the official TNPSC website: https://www.tnpsc.gov.in
Open the TNPSC Group 4 recruitment notification
Read the eligibility criteria and instructions carefully
Register as a new user if you do not already have an account
Log in with your registered credentials
Fill in the online application form with correct details
Upload the required documents, photograph, and signature
Pay the application fee online if applicable
Review all entered details before submission
Submit the application form
Download and save the submitted application copy for future reference