Shriram Transport Finance — Added my pan card number as a guarantor without my knowledge

Address: BANGALORE-560067

Dear SIR/MADAM

This is Mahesh K From Bangalore
How can u add a Guarantor to a loan without his signature and knowledge. My pan card is added a commercial vehicle loan .but I didn't know how is that I am Guarantor of loan in SRIRAMTRAN finance. Know in its effect my cibil score also .

PAN CARD :APAPM2671N
NAME :MAHESH K
LOAN ACC: WHITET[protected]