INR-margined perps — why they had to exist

When an Indian retail trader takes a leveraged long position on BTC through a USDT-margined perpetual future on an offshore exchange, they are exposed to two risks: the price of BTC, and the stability of USDT against INR. The first risk is the one the trader thinks they are taking. The second risk is invisible until it is not.

For most of crypto’s history, the USDT/INR risk was small enough that nobody worried about it. The 2022 USDT depeg, the 2023 USDC/SVB exposure, and the broader stablecoin instability of the post-Luna era made it clear that the second risk is real, occasional, and capable of destroying retail accounts in ways that have nothing to do with the trader’s BTC view.

INR-margined perps remove the second risk. They had to exist. Here is why they finally do.

the double-exposure problem

The mechanics, concretely.

trader deposits           ₹100,000
converts to USDT          ~$1,200 (at ₹83/$ assumed)
takes 10x leveraged       $12,000 BTC long
                           (USDT-margined perp)

The trader’s PnL has two components. The BTC component is what they intended to bet on. The USDT component is the silent passenger.

If BTC moves +5%, the trader makes $600 on a $12,000 notional. If USDT stays stable against INR, the rupee return is ₹49,800 (≈ +50% on margin). If USDT also drops 2% against INR during that period — because of a stablecoin crisis, a flight-to-USD, or any number of macro factors — the rupee return is ₹47,800 instead of ₹49,800. The trader correctly forecast BTC and still earned less than the BTC move alone would have produced.

In the opposite case, the silent passenger can also help. If USDT appreciates against INR while BTC moves up, the trader makes more in rupees than the BTC move alone justified.

Over hundreds of trades and many years, the USDT/INR component averages out. Over a single high-stakes trade during a stablecoin crisis, it can be devastating.

why most Indian traders did not notice

Three reasons.

USDT was stable for most of 2018-2021. During the period when most Indian retail traders entered crypto, USDT held the peg within ±0.3% almost always. The currency-of-margin risk was rounding error compared to BTC volatility. Traders learned that USDT was “the same as dollar” and the dollar was “the same as a stable currency against INR” — neither approximation was perfect but both were close enough.

The 2022 USDT depeg was brief. USDT traded as low as $0.95 in May 2022 for a few days during the LUNA collapse. The depeg corrected within a week. Most Indian retail traders who got hit by it absorbed the loss and forgot about it. The lesson did not stick.

The Indian press did not cover the structural risk. Indian crypto journalism in 2022-2024 was dominated by the TDS story, the exchange compliance story, and the offshore enforcement story. The stablecoin instability story was a secondary thread that got lost. The result is that most Indian retail traders in 2025 do not think about USDT/INR as a separate risk.

the 2022 wake-up call

A small number of Indian quant traders and institutional desks did notice. The May 2022 USDT depeg, combined with the November 2022 FTX collapse (which had USDT-denominated exposure), made the argument for INR-margined alternatives concrete.

The conversation about “we need INR margin” started in mid-2022 in private among Indian crypto operators. The product launches started in 2024 and accelerated in 2025.

The driver was not philosophical. It was structural risk management. A trader running an Indian quant strategy on USDT-margined offshore venues was taking material currency risk that was unrelated to their alpha. Removing that risk was a 30-50 basis points per year improvement in risk-adjusted returns, which is meaningful at scale.

the technical mechanics of INR margin

An INR-margined perpetual future operates the same way as a USDT-margined one, with three structural differences.

USDT-margined                         │ INR-margined
margin currency: USDT                 │ margin currency: INR
funding accrual in USDT               │ funding accrual in INR
liquidation engine uses USDT-mark     │ liquidation engine uses INR-mark
                                       │ (with INR/USD oracle for BTC pricing)

The mark price for BTC is computed in INR by combining the BTC/USD spot price with an INR/USD oracle. The oracle is the new infrastructure component — it has to be reliable, manipulation-resistant, and aligned with what the trader sees on their banking apps.

The liquidation math is the same shape but operates in INR. Funding rates settle in INR. Withdrawals are in INR. The user never has to touch USDT (or any other stablecoin) during their trading lifecycle.

the settlement architecture

The hardest engineering problem is settlement. An INR-margined perp needs to settle in actual INR, which means the exchange has to hold INR reserves, has to manage INR/crypto flow for hedging, and has to integrate with the Indian banking system for deposits and withdrawals.

Two architectures have emerged.

Direct banking integration. The exchange operates as a fintech with banking partnerships, accepting INR deposits via UPI/IMPS and processing INR withdrawals. The exchange’s INR balance is held at a partner bank. This is the cleaner architecture and the higher-friction one, requiring fintech-grade compliance infrastructure.

INR-pegged stablecoin overlay. The exchange uses an INR-pegged stablecoin (issued by a fintech partner) as the unit of account, while still accepting INR deposits. The user sees INR throughout the experience; the on-chain settlement uses the pegged token. This requires the INR stablecoin infrastructure to exist, which is still emerging.

The first architecture is what the current Indian-registered derivatives exchanges have built. The second will become viable as INR stablecoins emerge over the next 24 months.

the regulatory blessing required

INR-margined perps require regulatory comfort with several pieces.

First, the underlying perpetual futures product has to be permitted. Indian regulators have not formally legalised crypto derivatives, but they have not formally prohibited them either. The current launches operate in this ambiguous space, with FIU registration providing partial regulatory legitimacy.

Second, the INR margin handling has to comply with the relevant payment regulations. Accepting INR deposits is straightforward for an entity with PA/PG licenses. Holding INR margin for derivatives positions is more delicate — the regulator may view this as accepting trader deposits, which has implications for fund segregation and customer protection.

Third, the leverage levels have to be consistent with what the regulator is comfortable with. The Indian equity derivatives market has a 50x cap on intraday leverage. The crypto derivatives market may eventually face similar caps. The current operating range (5x-25x for most retail) is conservative enough to not attract attention. Pushing higher would risk regulatory intervention.

the current state

As of mid-2025, three Indian-registered exchanges offer INR-margined perpetual futures on BTC and ETH. A small number offer perps on other major altcoins.

Adoption is growing 20-30% month-on-month. Most of the growth is from traders moving off offshore USDT-margined venues to onshore INR-margined ones. New retail trader acquisition is also strong but slower.

The product is not yet at parity with global derivatives venues on depth, liquidity, or fee structure. The gap is closing as volume grows. Within 12 months, INR-margined perps on BTC will be competitive with USDT-margined offshore alternatives on most metrics.

the close

INR-margined perps had to exist because the alternative was structural currency risk that Indian retail traders were taking without knowing. The 2022 USDT depeg was the proof that the risk was real. The 2024-2025 onshore launches are the response.

The trader who takes a leveraged BTC position should be exposed to BTC. They should not be silently exposed to USDT, USDC, or any other foreign stablecoin. The structural fix for this is INR margin. The Indian crypto derivatives market is the first place where the structural fix is being shipped at scale.

The next 24 months will determine whether the product takes the majority of Indian crypto derivatives volume. The trajectory suggests it will.