HDFC Credit Card Upgrade

Hi all,
What are the requirements for upgrading from the HDFC Moneyback+ credit card to the Millennia or another higher variant? I have held the Moneyback+ and Tata Neu Plus cards for two years but have not received any upgrade offers.

@anaghanair If your credit limit is over ₹1 lakh, you can email HDFC to ask for an upgrade. This can help you move to a higher credit card, like the Millennia or another premium card.