I have been using my ICICI Bank credit card for 24 months with a clean repayment history. How can I request a credit limit increase, and what factors does the bank consider?

Don't blindly apply based on YouTube recommendations. Pull your latest CIBIL score first — most premium cards need 760+. If your score is in the 700-750 range, start with a lifetime free card and upgrade after 12-18 months of clean history.