Does having too many credit cards affect CIBIL score?

In this month alone i got 3 new credit cards. Yes bank approached me saying there’s a pre-approved credit card, which will be the fourth one.

This will be the fourth enquiry on my CIBIL this month, but none of them got rejected. Current score is 770+ and age of credit is almost 3y

My understanding is having more credit limit will help keep Credit Card Usage index below 20-30%. Is this correct?