HDFC Diners Club Black Metal vs IDFC FIRST Gaj (2026)
IDFC FIRST Gaj vs HDFC Diners Club Black Metal: which wins?
₹2,06,276ranking value a year at ₹3L a month, to IDFC FIRST Gaj
Skip the duel — the board, ranked → · nothing to sign up for
The answer changes hands 2 times between ₹0.25L and ₹5L a month — this pair is decided by your spend, not by the board.
It swings with spend: IDFC FIRST Gaj at ₹1L/month, HDFC Diners Club Black Metal at ₹3L/month, IDFC FIRST Gaj at ₹5L/month.
Every metric, row by row — 12 compared
Head to head
| HDFC Diners Club Black Metal | Metric | IDFC FIRST Gaj |
|---|---|---|
| #2 | Our rank | invite-only |
| ₹10,000/yr — wins this row | Fee — joining · annual (+ GST) | ₹12,500/yr |
| ₹8,00,000 spend | Fee waiver | ₹10,00,000 spend |
| 2% + GST | Forex markup | Nil — 0% markup on foreign currency, DCC and static-currency-conversion transactions — wins this row |
| 1.99%/mo (23.88%/yr) | APR | Dynamic 0.71%–3.85%/mo (8.5%–46.2%/yr); overdue rate 3.99%/mo (47.88%/yr) on MAD non-payment |
| 3.3% | Headline earn rate | 3.3% |
| HDFC Reward Points | Currency | IDFC FIRST Reward Points |
| ₹1.00/pt | House value | ₹0.25/pt † |
| Club Marriott, Amazon Prime & Swiggy One on ₹1.5L spend in 90 days — HDFC's own page says the Swiggy One leg is ANNUAL in one block and 3 MONTHS in another | Welcome benefit | 12,500 RP on joining-fee payment (₹12,500 at the ₹1 travel value) + a 25%-off 5-star hotel voucher worth up to ₹5,000 on ₹1L spent in 60 days — once per customer |
| 91 of 793 | Lounge doors opened | 129 of 793 — wins this row |
| ₹2.5L+/month net | Income — salaried | not published |
| ITR ₹30L+/yr | Income — self-employed | not published |
† IDFC FIRST Gaj: Gaj redeems the IDFC point at ₹1.00 on flight and hotel bookings in the app's Travel & Shop section — FOUR TIMES the ₹0.25 house value, and the top rung on IDFC's ladder alongside FIRST Private — but ₹0.25 on vouchers, products or "pay with points". earn.base is scaled UP to that ₹1.00 reality, so the rate below collapses to a quarter of itself the moment you redeem for anything but app travel; points can only cover 70% of a booking, and 1.5L a month / 3L a year of them.
Gold marks the better side of a row. House value is our ₹-per-point mark for each card's currency — the full valuation index →
The ₹ face-off at ₹1L/₹3L/₹5L a month
Ranking-value face-off
Everyday spend at each card's base rate plus a realistic ~20% at its best accelerator (less for narrow or capped boosters) — milestones, fee waivers and the redemption haircut all at our house ₹/point. That's why the biggest headline rate doesn't automatically win. This is the ranking model, the one that orders the board; each card page prints the earn-rate-only net annual value instead, which reads lower for any card with an accelerator (both models, side by side). Tune it to your own spend in the calculator.
It swings with spend: IDFC FIRST Gaj at ₹1L/month, HDFC Diners Club Black Metal at ₹3L/month, IDFC FIRST Gaj at ₹5L/month.
Where the lead changes hands — a 20-step sweep from ₹0.25L to ₹5L/month
Where the lead changes hands
The lead changes hands at ₹1.5L and ₹3.25L a month: IDFC FIRST Gaj is ahead by ₹13,249 at ₹0.25L, IDFC FIRST Gaj by ₹24,974 at ₹5L.
IDFC FIRST Gaj pays a renewal bonus whatever you spend, and HDFC Diners Club Black Metal pays nothing to stay.
HDFC Diners Club Black Metal draws above the line, IDFC FIRST Gaj below · ₹0.25L to ₹5L a month, step by step
| Monthly spend | HDFC Diners Club Black Metal | IDFC FIRST Gaj | In front |
|---|---|---|---|
| ₹0.25L | ₹3,941 | ₹17,190 | IDFC FIRST Gaj by ₹13,249 |
| ₹0.5L | ₹17,882 | ₹34,379 | IDFC FIRST Gaj by ₹16,497 |
| ₹0.75L | ₹41,823 | ₹51,570 | IDFC FIRST Gaj by ₹9,747 |
| ₹1L | ₹55,764 | ₹68,759 | IDFC FIRST Gaj by ₹12,995 |
| ₹1.25L | ₹69,705 | ₹85,949 | IDFC FIRST Gaj by ₹16,244 |
| ₹1.5L | ₹1,23,646 | ₹1,03,138 | HDFC Diners Club Black Metal by ₹20,508 |
| ₹1.75L | ₹1,37,587 | ₹1,20,328 | HDFC Diners Club Black Metal by ₹17,259 |
| ₹2L | ₹1,51,528 | ₹1,37,518 | HDFC Diners Club Black Metal by ₹14,010 |
| ₹2.25L | ₹1,65,469 | ₹1,54,708 | HDFC Diners Club Black Metal by ₹10,761 |
| ₹2.5L | ₹1,79,410 | ₹1,71,897 | HDFC Diners Club Black Metal by ₹7,513 |
| ₹2.75L | ₹1,93,351 | ₹1,89,087 | HDFC Diners Club Black Metal by ₹4,264 |
| ₹3L | ₹2,07,292 | ₹2,06,276 | HDFC Diners Club Black Metal by ₹1,016 |
| ₹3.25L | ₹2,21,233 | ₹2,23,467 | IDFC FIRST Gaj by ₹2,234 |
| ₹3.5L | ₹2,35,174 | ₹2,40,656 | IDFC FIRST Gaj by ₹5,482 |
| ₹3.75L | ₹2,49,115 | ₹2,57,846 | IDFC FIRST Gaj by ₹8,731 |
| ₹4L | ₹2,63,056 | ₹2,75,035 | IDFC FIRST Gaj by ₹11,979 |
| ₹4.25L | ₹2,76,997 | ₹2,92,225 | IDFC FIRST Gaj by ₹15,228 |
| ₹4.5L | ₹2,90,938 | ₹3,09,415 | IDFC FIRST Gaj by ₹18,477 |
| ₹4.75L | ₹3,04,879 | ₹3,26,605 | IDFC FIRST Gaj by ₹21,726 |
| ₹5L | ₹3,18,820 | ₹3,43,794 | IDFC FIRST Gaj by ₹24,974 |
Transfer reach — 22 vs 0 live routes
Transfer reach
0 shared routes · 3 only HDFC Diners Club Black Metal · 0 only IDFC FIRST Gaj — the full partner lists
Only HDFC Diners Club Black Metal
- Singapore Airlines KrisFlyer
- Finnair Plus (Avios)
- Qatar Airways Privilege Club (Avios)
Full route maps on each card page, best ₹/point routes on the optimizer →
What to watch out for — 6 points
What to watch out for
HDFC Diners Club Black Metal
- Diners acceptance still patchy internationally
- Lower SmartBuy cap than Infinia (10,000 RP/mo vs 15,000) — shares the 3,000 RP/mo voucher sub-cap and 2026 trims
- Carry a Visa/Mastercard backup for travel
IDFC FIRST Gaj · 4 more →
- Invite-only for private-banking clients — there is no public route that gets you approved
- Closed loop: zero airline or hotel transfer partners, like every other IDFC card
- The ₹1 is portal-locked and pays at most 70% of a booking; cash out and it's ₹0.25
The call
For the ₹1L/month spender, IDFC FIRST Gaj nets ₹68,759 against ₹55,764 — a ₹12,995 gap. At ₹5L/month, IDFC FIRST Gaj nets ₹3,43,794 against ₹3,18,820 — a ₹24,974 gap. Lounge chasers: IDFC FIRST Gaj opens 129 of 793 tracked doors to HDFC Diners Club Black Metal's 91.
Our standing verdicts: HDFC Diners Club Black Metal — Keep; IDFC FIRST Gaj — Keep. IDFC FIRST Gaj takes 4 of the 6 rounds we can score — that's the overall call. Your spend pattern can overrule us: run your exact numbers →
Common questions — 5 answered
Straight answers
Which is better, HDFC Diners Club Black Metal or IDFC FIRST Gaj?
IDFC FIRST Gaj. IDFC FIRST Gaj takes 4 of the 6 rounds we can score. It swings with spend: IDFC FIRST Gaj at ₹1L/month, HDFC Diners Club Black Metal at ₹3L/month, IDFC FIRST Gaj at ₹5L/month.
HDFC Diners Club Black Metal or IDFC FIRST Gaj — which earns more at ₹3L a month?
At ₹3L a month, HDFC Diners Club Black Metal nets ₹2,07,292 against ₹2,06,276 — a ₹1,016 gap. Those are ranking-value figures: everyday spend at the card's base rate plus a realistic slice at its best accelerator, net of the fee.
Which costs less to hold, HDFC Diners Club Black Metal or IDFC FIRST Gaj?
HDFC Diners Club Black Metal — ₹10,000/yr against ₹12,500/yr. HDFC Diners Club Black Metal waives its fee at ₹8,00,000 of spend; IDFC FIRST Gaj at ₹10,00,000 of spend.
Which gets you into more airport lounges, HDFC Diners Club Black Metal or IDFC FIRST Gaj?
Lounge chasers: IDFC FIRST Gaj opens 129 of 793 tracked doors to HDFC Diners Club Black Metal's 91. Visit quotas, guest charges and spend gates are per card — the lounge map carries each one.
How current is this comparison?
Card records last re-verified against their issuers' own documents: HDFC Diners Club Black Metal on 2026-08-05, IDFC FIRST Gaj on 2026-08-16. Every figure on this page — the ranking values, the fee rows, the lounge counts, the transfer ratios — is recomputed from those records each time the site builds, so a devaluation changes the call the day we log it.
Verified against HDFC Bank and IDFC FIRST Bank's own documents on · the ranking model, at our house ₹/point
Every document behind this page — 13 of them, each with the day we read it
- official Canonical product page — "Joining/Renewal Membership Fee – ₹10,000/- plus Applicable Taxes", the ₹8 lakh renewal-fee waiver, and the Swiggy One welcome term stated two different ways
- official SmartBuy core-offer T&C (window 01-09-2026 to 30-09-2026) — same 5X Flights / 10X Hotels engine as the Infinia, but 3X on Brand Vouchers where the Infinia keeps 5X
- official Product page (AMP mirror) — corroborates 5 RP/₹150, 10k/₹4L quarterly, the welcome trio on ₹1.5L/90d, unlimited lounge, 2% forex
- official Rewards T&C PDF (revision dated 26-Jun-2025) — the primary source for weekend dining: "2X Reward Points is applicable on spends at standalone restaurants during weekend"
- community CardInsider — SmartBuy 10k cap + 3k voucher sub-cap (Jul-2026)
- community TechnoFino — the DCB→Infinia branch-upgrade route
- official Domestic lounge list — the 48 rooms the four quarterly visits can be spent at, addresses and terminals included
- official Product page + FAQs (₹12,500 joining and annual, waiver at ₹10L; ANNUAL FEE PAYMENT BENEFIT of 12,500 RP worth up to ₹12,500 credited on paying the renewal when the waiver)
- official Rewards T&C PDF (5 RP/₹150 base, 3 RP/₹150 international, 1 RP/₹150 on rent/utilities/govt/education; bonus is ADDITIVE — Base (A) 5 + Bonus (B) 45/20 = Total (A+B) 50/25 RP
- official 18-Jun-2026 change notice PDF (rewards earned only on spends up to your credit limit per billing cycle)
- official Bank-wide MITC (₹12,500/₹12,500; add-on ₹4,000 joining / ₹2,000 annual; NIL forex; ₹199 cash advance; ₹99 redemption fee; ₹4,000 card replacement; 1% utility fee past)
- official Benefits T&C PDF (VISA Infinite; ITC Hotels "stay 3 pay 2" via promocode ITCVIS — a Visa offer, not a membership)
- community Launch coverage, 29 Dec 2025 — invite-only for FIRST Private Banking clients