Wrong Name in CIBIL - How to Update?

Contact the bank who has updated that name in CIBIL.
I have minir misspelling in name in CIBIL, I raised dispute on CIBIL, they responded to contact the bank.
How to know whom Updated my name? I am having oldest account in IDFC Flipkart pay Later, and Credit card is from HDFC. How i will know whom updated my wrong name?
 
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