1. Use Digital Signature Certificate (DSC)

• Obtain a valid Class 2 or Class 3 Digital Signature Certificate in the name of the authorized signatory
  
• DSC must be issued by a government-approved certifying authority
  
• Required for digitally signing TDS returns, correction statements, and TAN-related forms
  

2. Register DSC on TRACES Portal

• Log in to the TRACES portal using your TAN credentials
  
• Go to Profile > Register Digital Signature
  
• Download and install the emSigner utility as prompted
  
• Attach the DSC and complete the registration process
  

3. Authenticate TDS Return Filing

• Prepare and validate TDS return files using RPU and FVU tools
  
• Upload the return on the TIN-NSDL e-filing portal or TRACES
  
• Use your registered DSC to digitally authenticate the upload
  
• Acknowledgment is generated upon successful authentication
  

4. Authenticate TAN Corrections

• If filing a TAN correction online through the Protean eGov portal, sign the application using your registered DSC
  
• This ensures faster processing without the need to submit a physical acknowledgment
  

5. Use in TDS Certificate Downloads

• On TRACES, DSC authentication is required to download Form 16/16A, Consolidated Files, and Justification Reports
  
• Ensures that the files are securely accessed by authorized users only
  

Digital authentication using DSC helps validate TAN-holder identity, ensures secure submissions, and is mandatory for many TDS-related online processes.