Loan & Credit Card Fraud

To the Concern,
I received frequent calls from known number asking about ABN Amro Personal Loan outstanding in my name, some times received calls from Kotak Mahindra Bank for the same loan. In my knowledge I never visit ABN Amro Bank and in bank accounts I never get any amount from ABN Amro, then where the loan matter comes from. In my Cibil, Barclays Credit are showing which I never applied, A personal Loan from Phoenix ARC showing don’t know how?
Request you to please help me to make my CIBIL Score good.