Is sign required in cancelled cheque

No, a signature is generally not required on a cancelled cheque. The primary purpose of a cancelled cheque is to provide bank account details such as the account number, IFSC, and MICR code for verification without allowing any financial transaction. Signing it is not necessary and is often discouraged to prevent potential misuse or the risk of your signature being replicated by fraudsters. If an institution specifically mandates a signature, you should ask for a formal declaration or statement explaining the requirement before providing it.