Below-mentioned are the reasons that might have affected your CIBIL Score:
An Error in Your CIBIL Report: Lenders might have reported errors that you are not aware of: Your closed loan is still showing active, duplicate account entry, linking someone else's loan to your PAN, etc.
Credit Utilization Ratio is High: A consistently high credit utilization may signal that you are credit hungry and are dependent on credit too much. This could lead to a drop in your credit score.
A Hard Enquiry You Might Have Missed: Every time you apply for any type of credit, a hard enquiry is initiated, which is reported to credit bureaus. Each hard enquiry leads to a slight drop in your credit score, though it is temporary.
Loan Settlement Vs Full Closure: If you do not pay your loan amount in full and settle with the bank at a lesser amount, this puts a negative impact on your credit score. It shows lenders that you were unable to pay your credit in full.
You Are a Co-Applicant: You might have signed up as a co-applicant with someone, and if that person defaults, it directly affects your credit score.