IndiGo Ka-ching Kotak 6E Rewards XL Credit Card

Quick verdict: Retired. While it ran it earned an accelerated rate on IndiGo bookings, a middle tier on dining, movies and groceries and a base rate elsewhere, with 8 lounge visits a year and a welcome IndiGo flight ticket — effectively a fare discount for a weekly IndiGo flyer. Kotak has since removed the pages that stated those rates, so they cannot be verified today. Holders moved to the ₹1,500 IndiGo Kotak Credit Card. IndiGo also moved the reward currency to BluChips in 2025.

The Kotak IndiGo Ka-ching 6E Rewards XL is retired, and Kotak has taken its product pages down. That second part matters more than it sounds: the category rates this card once published can no longer be checked against an issuer source, so this page is kept for existing holders and for context rather than as a recommendation, and the earn figures below are recorded as last-published rather than asserted as current.

While it ran, it earned an accelerated rate on IndiGo bookings that arrived fast enough to feel like a standing fare discount for someone booking IndiGo most weeks. Two things to understand going in. IndiGo changed the currency underneath the card in 2025. And if you are choosing an IndiGo co-brand today, Kotak is no longer the strongest option — on the rate the card itself pays, the premium tiers run 7 BluChips per ₹100 on the IndiGo SBI Card ELITE and IndiGo Axis Premium, 6 on the IndiGo IDFC FIRST and 5 on Kotak's XL.

What it earns

The XL variant is built around IndiGo and the categories that surround travel:

These are the rates as last published. Kotak has withdrawn the pages that carried them, and its own surviving material disagrees with the middle tier, so treat them as a record of what the card offered rather than as verified current figures.

• 6% back (as IndiGo rewards) on IndiGo bookings — the headline.
• 3% back on dining, movies/entertainment and groceries.
• 2% back on all other retail spend.
• A welcome IndiGo flight ticket plus 6E Prime add-ons (priority check-in, seat

selection, a meal), and 8 complimentary lounge visits a year (up to two per quarter) — generous for a co-brand card.

For someone booking even ₹10,000–₹15,000 of IndiGo flights a month, the 6% compounds into several free flights a year, and the lounge access and welcome ticket sweeten the deal further.

The big 2025 change: 6E Rewards → BluChips

The most important development for this card isn't a fee or a rate — it's the loyalty currency itself. IndiGo migrated from "6E Rewards" to its new BluChips programme, and by 3 October 2025, all existing 6E Rewards balances were converted to BluChips with a one-time 18% bonus. Going forward, the rewards you earn live in the BluChips ecosystem. The conversion was holder-friendly (the 18% bonus was a genuine gift), but it's a reminder of the core risk with any airline-scrip card: the airline controls the currency, and it can restructure, devalue, or expire it at its discretion. Bank points are firmer money than airline rewards, and BluChips are only as good as IndiGo keeps them.

A note on what replaced it: the Ka-ching / 6E Rewards XL branding was retired in that same 2025 migration. Per Kotak's own migration FAQ, 6E Rewards XL holders were moved to the IndiGo Kotak Credit Card at their existing ₹1,500 fee — not to the ₹3,000 IndiGo XL Kotak, which is a separate opt-in upgrade. The distinction matters: the ₹1,500 card carries no lounge access and a lower earn rate. Kotak sells both today.

The honest read

This was a single-purpose card, and it should be judged as one. It rewarded IndiGo spend well; off IndiGo, the middle tier on dining, movies and groceries was a useful backup while the base rate was ordinary, and the 3.5% forex markup made it a poor travel-abroad companion. The value calculus was binary: fly IndiGo regularly and book direct, and it paid for its modest fee many times over; fly occasionally or across airlines, and a flexible-miles or flat-cashback card served you better.

Worth stating plainly, because this page said the opposite for a long time: Kotak was not the best-earning IndiGo co-brand — and HDFC, which this review used to name as the card Kotak beat, is not an IndiGo partner at all.

Comparing them takes one adjustment, though, because every issuer advertises a number larger than its card pays. IndiGo publishes what each headline is made of, and the make-up is the same in each case: a card component, plus 12 BluChips per ₹100 for booking through IndiGo's own channels and 4 for Blu 1 tier status. Those 16 go to any BluChip member paying with any card — they are IndiGo's, not the bank's. What each card actually contributes is this:

The ordering survives the adjustment; the distance does not. Headline to headline these look like four near-identical cards, 23 down to 21. On what the card pays, the leaders return 40% more per rupee than Kotak's — though Kotak's XL asks ₹2,000 less a year, which is the trade to weigh.

(Note on fees: the XL variant carries a ₹2,500 joining / ₹1,500 annual fee. The XL's higher fee buys the lounge access and welcome ticket — worth it for the frequent flyer, overkill for the occasional one.)

Who should hold it

Nobody new — the card is retired and cannot be applied for. If you already hold it, you were migrated to the IndiGo Kotak Credit Card at your existing ₹1,500 fee, so check whether the lounge access you may have been relying on came with you: the ₹1,500 card does not carry it.

If you are shopping for an IndiGo co-brand now, start with IndiGo's own partner list rather than this page — Axis and SBI lead it, IDFC FIRST follows, and Kotak sits fourth.

The bottom line

The IndiGo Ka-ching Kotak 6E Rewards XL is gone. While it ran it was a strong IndiGo companion for someone booking direct and often — accelerated earning on IndiGo, a middle tier on dining, movies and groceries, lounge access and a welcome flight, at a fee it repaid for a frequent flyer. It was not, as this page long claimed, the highest-earning IndiGo co-brand in India.

Two things carried forward. IndiGo moved the rewards into its BluChips programme in 2025 with a friendly 18% conversion bonus, and the airline controls that currency's future value. And existing holders were migrated to the ₹1,500 IndiGo Kotak Credit Card, which earns less and includes no lounge access — if that was part of why you held this card, it is worth checking what you have now.