A No Objection Certificate (NOC) is a legal document issued by an NBFC or bank to a customer declaring that they have no outstanding dues towards the lender. This document can be used as proof that all your dues towards a loan are clear and the loan is closed.
In case the information about your loan closure is not updated on your credit/ CIBIL report, NOC can be used to validate that the past loan was indeed closed. Please know that NOC only proves that the loan is closed, but the credit/ CIBIL report shows complete repayment details (like whether all EMIs are paid on time, tenure, interest, etc.).