Synopsis: An interest-free credit period lets the cardholder spend today and repay without any cost, as long as the cardholder clears dues in full by the due date. This article mentions the two cards Roarbank Credit Card and HDFC Bank Millenia Credit Card for their maximum interest free period benefits.
Picking a credit card with a longer interest-free window gives the user a benefit of a better cash flow, whether he/she is a salaried professional, a frequent shopper, or a travel enthusiast. Here are the two credit cards which provide a maximum interest-free period credit card. This article compares 2 cards that offers high interest-free period, high cashbacks and many more benefits.
1. Roarbank Credit Card

This credit card is issued by Unity Small Finance Bank, and also it is a lifetime-free credit card. This card gives upto 20% cashback on selected categories.
- Joining Fee: ₹0, Nil
- Annual Fee: ₹0, Nil
- Issuer: Unity Small Finance Bank
- Network: RuPay
- Post-Period Interest Rate: After the interest-free period ends, a 39.6% per annum (3.3% monthly) on unpaid outstanding balance is charged
- Eligibility: Must be an Indian resident, at least 18 years old, with consistent source of income
- Documents Required: PAN Card, Aadhar Card, and basic KYC required
- Max Interest-Free Period Credit Card: Upto 62 days, including a 3 day grace period as stipulated under RBI guidelines
To apply for the card, please visit the Official Website
2. HDFC Bank Millennia Credit Card

HDFC Bank Millenia Credit Card is offered by HDFC bank, and also offers the zero lost card liability on reporting card loss immediately to the 24-hour call centre.
- Joining Fee: ₹1000 + Applicable taxes
- Annual Fee: ₹1000 + Applicable taxes
- Fee Waiver: On a spent over ₹1,00,000 in a year before renewal
- Issuer: HDFC Bank
- Network: Visa/Mastercard
- Post-Period Interest Rate: Typically around 3.4% per month
- Eligibility: Must be an Indian resident aged between 21-40 years for salaried individuals, monthly income above ₹35,000 and for self-employed ITR above ₹6 lakh per annum
- Documents Required: PAN Card, Aadhar Card, and KYC required
- Max Interest-Free Period Credit Card: Upto 50 days from the date of purchase (changes subject to the submission of the charge by the Merchant)
To apply for the card, please visit the Official Website
Also Read: Roarbank Offers Up to 20% Cashback: Is This the Best Lifetime Free RuPay Cashback Card in India?
Cashback Comparison Example
The below example is only for reference to understand and compare the cashbacks given by both the credit cards.
Effective Return Comparison
Roarbank offers significantly higher cashback potential with up to 20% cashback on selected monthly categories and HDFC Millenia provides a more stable, widely acceptable 5% cashback structure across major online brands and 1% on general spending.
Additional Components
Conclusion
The Roarbank Credit Card leads in terms of interest-free period of up to 62 days, and also provides zero-cost, fee-free credit with UPI integration. The HDFC Millenia Credit Card is however a strong all-rounder for online shoppers who want broader merchant acceptance,and international usage. The choice between the card depends on the prioritization of maximum credit-free days and zero fees, or wider card acceptance and a premium rewards ecosystem.
Written by Jahnavi