Credit Information Bureau India [CIBIL] — Credits on my Name without my knowledge

I'm an average credit card use, i made on time payments moreover I've good credit discipline but from the past 32 days my credit score has changed from 760 to 668 without my knowledge I've checked there are many unknown credits on my name which I actually haven't taken except from TVS that I already closed. I also complained about it but I haven't got any response from their end please look into the issue and solve it as soon as possible.