So as you told me i checked through pdf obtained through airtel thanks app but i didn't find any thing that could affect my credit score drastically
No credit enquiries in last 8 months, 11/11 ontime payments, and a negative outstanding balance of rs -253
Should i raise issue with cibil ?
First of all, you probably paid before billing date - paying before due date is something we basically always have to do!
Even this shouldn't result in this negative balance, unless you paid in excess. I can understand rounding up the due amount (or in your case, the outstanding) a bit - like 243.43 to 244, but how did this excess of INR 253 happen? Did you get some refund or cashback?
Anyway, I think 748 is still not at all a worrisome score with 1 year and 1 credit card. I'd suggest waiting a month or two and maybe taking one more. Hopefully you'll be more than 750 by then. Having multiple accounts helps prevent freak events like this. Note that two IS multiple here: and with just 1 year history, don't add 4 more cards in a month!
Avoid gymnastics like paying before billing date for couple of years. Get the bill, then pay it. That means you keep the utilization low FOR REAL. If you have a purchase bigger than 50% of your limit to make, use your bank account (debit card, cheque, cash). You could do such gymnastics after say 3 or 4 years' credit history (or more!), with 2-3 accounts.
That said, this STILL doesn't make any sense to me. Most banks report 0 when you have a negative balance, and CIBIL scoring algo SHOULD have the sense to not treat negative debt negatively!
But I stand by what I said:
1. Avoid paying before billing date for some years. Pay the total due shown in bill between billing date and due date.
2. Keep utilization low.
3. Wait a couple months and check score again, if it looks decent, get one more credit card.
Don't freak out and raise a dispute with CIBIL for this. At least just yet.
