Yup. Confirmed over twitter email too.
Dear Mr. XXXXX,
We write with reference to your concern regarding your ICICI Bank Credit Card.
With reference to our telephonic conversation dated May 11, 2023, we inform you that Credit Card limit enhanced details will be get updated within 45 - 60 days in your CIBIL report from date of Credit Card March month bill generation.
Sincerely,
XXXXXXX XXXXXXX
Customer Service Manager
Team ICICI Bank