What are the different types of corrections I can make in filed e-TDS Return?

Following are the different types of corrections you can make in filed TDS Return: 

• C1 - Changes/ Correction to Payer/ Deductor details such as name, address
• C2 - Changes/ Correction to challan details such as challan serial no., BSR code, challan amount
• C3 - Update/delete/add payee/deductee details
• C4 - Add/delete salary detail records
• C5 - Update the PAN of the payee/deductee in deductee/salary detail records
• C9 - Add a new challan and underlying deductees

You will require to file a revise TDS Return to make the above changes.