C1 – Correction in Deductor’s Details – Name, Address
C2 – Correction in Challan Details – Date, Amount, BSR Code, Challan Serial No.
C3 – Correction in Deductee’s/Deductors’s Details
C4 – Correction in Salary Record
C5 – Correction in PAN of Deductee in Deductee/Salary Records
C9 – Addition of Challan