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AU Small Finance Bank Zenith+ vs IDFC FIRST Bank IndiGo Credit Cards – Fees, Lounge, Forex

Side-by-side comparison of the AU Small Finance Bank Zenith+ and the IDFC FIRST Bank IndiGo. Verify fees, lounge access, forex markup, and base rewards before you apply.

Zenith+
IndiGo

The short answer

Verdict

Pick Zenith+ for spending abroad and lounge access.

Head-to-head

Three core metrics
  • Annual fee
    Zenith+ ₹4,999 Waivable at ₹8,00,000 spend
    IndiGo ₹4,999
  • Forex markup
    Zenith+ 0.99%
    IndiGo 1.49%
    Zenith+ saves ~₹500 per ₹1L abroad
  • Domestic lounge
    Zenith+ 8/year (2 per quarter)
    IndiGo No complimentary lounge access
    Zenith+: +8 lounge visits/yr

Reward earning explained

Per card
Zenith+

3 pts / ₹100

Limited data
IndiGo

3 pts / ₹100 · Up to 6 pts / ₹100 on Indigo

Strong data

Pick based on what matters

4 dimensions

Start with the constraint you care about most: annual fee (AU Small Finance Bank Zenith+: ₹4,999 vs IDFC FIRST Bank IndiGo: ₹4,999), forex markup (0.99% vs 1.49%), or lounge access (8/year (2 per quarter) vs No complimentary lounge access).

  • Travel Insufficient data

    Insufficient data to compare travel

    Only AU Small Finance Bank Zenith+ has comparable evidence here. Forex markup is 0.99%.

    Zenith+: Strong data IndiGo: Strong data
  • Forex markup AU Small Finance Bank Zenith+ wins

    AU Small Finance Bank Zenith+ is better for forex

    AU Small Finance Bank Zenith+ is stronger here. Forex markup is 0.99%.

  • Lounge access AU Small Finance Bank Zenith+ wins

    AU Small Finance Bank Zenith+ is better for lounge access

    AU Small Finance Bank Zenith+ is stronger here. Domestic lounge access is 2 per quarter.

  • Rewards Insufficient data

    Insufficient data to compare rewards

    Available evidence is incomplete: AU Small Finance Bank Zenith+ is not safely INR-comparable (no usable point value). IDFC FIRST Bank IndiGo is not safely INR-comparable (no usable point value).

    Zenith+: Limited data IndiGo: Strong data

All fields

Example usage at this monthly spend

At ₹50k/month spend:

  • AU Zenith+: Base earn not clearly specified
  • IDFC FIRST IndiGo: Base earn not clearly specified

Illustrative only, using current base rates before caps.

Field Zenith+ AU Small Finance Bank IndiGo IDFC FIRST Bank
Lounge Access
Domestic lounge visits
8/year (2 per quarter) vs No complimentary lounge access
8/year (2 per quarter) No complimentary lounge access
International lounge visits
2 per quarter vs Not included
2 per quarter No international lounge access
Forex / International Use
Forex markup
Source agreement differs — verify both.
0.99% vs 1.49%
0.99% 1.49%
Fees
Recurring annual fee ₹4,999 ₹4,999
Annual-fee waiver
Only available for AU Zenith+
₹8,00,000 Not specified
Interest-free period
Up to 50 days vs Up to 45 days
Up to 50 days Up to 45 days
Monthly interest rate
Only available for AU Zenith+
1.99% / month Not specified
Fuel benefit
Surcharge waiver available · ₹400–₹5,000 transactions · ₹1,000/month waiver cap vs No surcharge waiver
Surcharge waiver available · ₹400–₹5,000 transactions · ₹1,000/month waiver cap No surcharge waiver
Rewards
Points per ₹100 3 pts / ₹100 3 pts / ₹100
Earn ceiling
Not stated vs Rewards apply only to spend up to your credit limit each statement cycle — shared across General spend, Indigo, Education, FASTag, Fuel, Government services, Insurance, IRCTC, Railways, Rent, Utilities, Wallet loads & UPI
Not stated Rewards apply only to spend up to your credit limit each statement cycle — shared across General spend, Indigo, Education, FASTag, Fuel, Government services, Insurance, IRCTC, Railways, Rent, Utilities, Wallet loads & UPI
Point validity
Only available for IDFC FIRST IndiGo
Not specified 2 years

Notes

  • Card benefits change frequently. Always verify current terms on the issuer's official website or app before applying.