How Much Does the Tata Aeris CNG Launch Cost in India 2026? Price, Mileage, Twin-Cylinder Tech vs Maruti Dzire

The Tata Aeris CNG launched on 25 September 2026 at ₹6.29 lakh (ex-showroom, Delhi) for the entry CNG MT Smart variant — making it the most affordable factory-fitted CNG compact sedan in India at launch, undercutting the Maruti Suzuki Dzire CNG by ₹2,000 at its base price. The Aeris CNG-AMT, a segment-first combination, starts at ₹7.69 lakh and goes up to ₹9.74 lakh for the top Accomplished CNG-AMT trim.

Here is how the Aeris CNG stacks up against its two closest rivals at a glance:

Spec	Tata Aeris CNG	Maruti Dzire CNG	Hyundai Aura CNG
CNG starting price (ex-showroom)	₹6.29 lakh	₹6.31 lakh	~₹7.66 lakh (est.)
CNG mileage (ARAI claim)	26.49 km/kg (reported, unconfirmed)	33.73 km/kg	~28.5 km/kg (est.)
CNG kit type	Factory-fitted twin-cylinder	Factory-fitted (S-CNG) single cylinder	Factory-fitted
CNG power output	75.5 PS / 96.5 Nm	69.75 PS / 101.8 Nm	~69 PS / ~95 Nm
Boot space (petrol)	419 litres	382 litres	402 litres
CNG-AMT available?	Yes (segment-first)	No	No
Wheelbase	2,450 mm	2,450 mm	2,450 mm
Six airbags standard?	Yes	Yes	Yes

Prices are introductory ex-showroom Delhi as of 25 September 2026. Aeris CNG mileage is a reported figure, not yet ARAI-certified at time of launch. Dzire ARAI mileage is official. Aura CNG figures are estimates based on published data.

What is the Tata Aeris CNG, and how does it replace the Tigor?

The Tata Aeris is a sub-four-metre compact sedan built on Tata's X-Alfa architecture, replacing the Tigor nameplate in Tata's private-buyer passenger vehicle lineup. It measures 3,995 mm in length, 1,684 mm in width and 1,532 mm in height, with a 2,450 mm wheelbase — dimensions almost identical to the outgoing Tigor, but with a thoroughly revised exterior and cabin.

The Tigor CNG was notorious for its boot penalty: twin cylinders left buyers with just 227 litres of luggage space. Tata has carried forward the twin-cylinder arrangement in the Aeris but expects the CNG boot to match the Tigor's 227 litres, making it the roomiest CNG sedan boot in the segment — though still a significant step down from the petrol version's 419 litres. Every CNG sedan buyer must accept this trade-off, and the Aeris does not escape it.

Tata has explicitly separated the Aeris from its fleet-focused XPRES line. The Aeris targets private buyers, while XPRES continues to serve commercial operators — a distinction worth noting if you are comparing total cost of ownership for a cab fleet.

What are the full Tata Aeris CNG prices across all variants?

The complete Aeris price list as of 25 September 2026 is as follows:

Variant	Petrol MT	Petrol AMT	CNG MT	CNG AMT
Smart	₹5.29 lakh	—	₹6.29 lakh	—
Pure	₹6.14 lakh	₹6.69 lakh	₹7.14 lakh	₹7.69 lakh
Pure+	₹6.74 lakh	₹7.29 lakh	₹7.74 lakh	₹8.29 lakh
Creative	₹7.49 lakh	₹8.04 lakh	₹8.49 lakh	₹9.04 lakh
Accomplished	₹8.19 lakh	₹8.74 lakh	₹9.19 lakh	₹9.74 lakh

All prices are introductory ex-showroom, Delhi. The base Smart variant is not available with AMT in either fuel type.

The CNG premium over the equivalent petrol MT variant is a consistent ₹1 lakh across all trims — a straightforward calculation that makes the payback math easier to run. The AMT premium over the manual is ₹55,000 in both petrol and CNG variants.

These are introductory prices. Tata has not confirmed how long the introductory pricing holds, so buyers should verify current ex-showroom prices at their nearest dealership before committing.

How does Tata's twin-cylinder iCNG technology work, and why does it matter?

Tata's twin-cylinder iCNG technology replaces a single large CNG cylinder with two smaller cylinders, typically mounted side by side in the boot, to reduce the depth of boot intrusion while retaining a usable luggage area. In the Aeris, the system uses a 70-litre water-capacity twin-cylinder tank — meaning the combined volume of both cylinders equals 70 litres of water capacity, which translates to roughly 8–9 kg of usable CNG depending on fill pressure.

Because the kit is factory-fitted, it comes with Tata's full warranty coverage and is integrated into the engine management system from the factory. This differs meaningfully from a dealer-fitted or aftermarket CNG kit, where the engine ECU is not recalibrated by the manufacturer and the car's original warranty on the powertrain can be voided. Buyers considering an aftermarket CNG kit on a petrol-only car should factor in this warranty risk.

The Aeris CNG also gets direct-start capability — the engine can start directly on CNG without needing to warm up on petrol first, a practical improvement over older factory CNG systems that required a petrol start. It includes a dedicated engine calibration for CNG mode, a leak detection system, leak-proof materials and enhanced rear-impact protection specific to the CNG variants.

The Maruti Dzire CNG uses Maruti's S-CNG system with a single cylinder. Maruti's S-CNG is also factory-fitted and warranty-compliant, but the single-cylinder arrangement typically intrudes more into boot depth even if the total volume is similar. The Dzire CNG's boot space is not separately published by Maruti, but the Aeris's twin-cylinder arrangement is designed specifically to preserve more usable boot width.

What is the claimed CNG mileage, and how do running costs compare with the Dzire?

The Aeris CNG's reported ARAI mileage is 26.49 km/kg, but this figure had not been officially confirmed by Tata Motors at the time of launch on 25 September 2026. Treat it as a reported estimate until Tata publishes the ARAI certificate.

The Maruti Dzire CNG's ARAI-certified mileage is 33.73 km/kg — a substantial lead over the Aeris's reported figure. This represents the single biggest weakness of the Aeris CNG relative to its main rival.

Here is the running cost arithmetic using Delhi CNG prices (approximately ₹74/kg as a reference rate — check live CNG prices in your city before calculating):

Car	CNG mileage (km/kg)	CNG price (₹/kg, Delhi approx.)	Cost per km (CNG)	Petrol mileage (km/l)	Petrol price (₹/l, Delhi approx.)	Cost per km (petrol)
Tata Aeris CNG	26.49 (reported)	₹74	₹2.79	19.2 (reported)	₹95	₹4.95
Maruti Dzire CNG	33.73 (ARAI)	₹74	₹2.19	25.71 (ARAI)	₹95	₹3.70

Petrol price and CNG price are approximate Delhi figures used for illustration only. ARAI figures are manufacturer claims under test conditions; real-world mileage is typically 15–25% lower.

At 26.49 km/kg versus 33.73 km/kg, the Aeris CNG costs roughly ₹0.60 more per km on CNG than the Dzire CNG. Over 1,500 km a month (a typical urban commuter), that gap amounts to about ₹900/month or ₹10,800/year — not trivial over a five-year ownership period. The Dzire's mileage advantage is real and significant.

However, the Aeris CNG's ₹1 lakh lower starting price partially offsets the running cost disadvantage. At ₹900/month in extra fuel costs, the Aeris buyer would need roughly 9 years of driving at that monthly distance to lose the price advantage entirely — which is longer than most Indian private-car ownership cycles. The math is closer than the mileage gap alone suggests, but the Dzire remains the more fuel-efficient car by a meaningful margin.

What engine and performance differences should CNG buyers know about?

Both the Aeris and Dzire use 1.2-litre, three-cylinder naturally aspirated petrol engines with near-identical displacements (1,199 cc vs 1,197 cc). The performance difference in petrol mode is small: the Aeris makes 86 PS and 113 Nm against the Dzire's 81.58 PS and 111.7 Nm.

In CNG mode, the gap widens slightly. The Aeris CNG produces 75.5 PS and 96.5 Nm, while the Dzire CNG makes 69.75 PS and 101.8 Nm. The Aeris has more power on CNG; the Dzire has more torque. In city traffic, torque matters more than peak power, so the Dzire's CNG driveability is not necessarily worse despite the lower power figure.

Both cars lose roughly 10–12 PS when switching from petrol to CNG — a universal characteristic of CNG engines. CNG has a lower calorific density per unit volume than petrol, which is why every CNG car in the segment produces less power in gas mode. Buyers who regularly drive on highways or carry four adults should factor this in.

The Aeris's CNG-AMT combination is a genuine segment-first. Neither the Dzire CNG nor the Hyundai Aura CNG currently offers an automatic transmission with CNG. For buyers in heavy urban traffic who want both the fuel savings of CNG and the convenience of an AMT, the Aeris is currently the only option in the compact sedan segment.

How does the Aeris CNG compare with the Dzire CNG on dimensions and boot space?

Both sedans share the same 3,995 mm length and 2,450 mm wheelbase — the maximum allowed under India's sub-four-metre tax benefit rules. The Dzire is 51 mm wider at 1,735 mm versus the Aeris's 1,684 mm, which gives the Dzire a slightly more planted stance and marginally more interior shoulder room. The Aeris is 7 mm taller and has 7 mm more ground clearance (170 mm vs 163 mm), which helps on broken roads.

The petrol boot comparison is unambiguous: the Aeris offers 419 litres against the Dzire's 382 litres and the Hyundai Aura's 402 litres. For a family that regularly packs for road trips or airport runs, that 37-litre advantage over the Dzire is real.

In CNG trim, the Aeris's twin-cylinder system is expected to leave approximately 227 litres of boot space — the same figure the Tigor CNG offered. The Dzire CNG's boot space with its single S-CNG cylinder is not officially published by Maruti, but single-cylinder systems typically leave a shallower but wider boot compared to twin-cylinder setups. In practice, CNG sedan buyers in this segment should expect to lose roughly 150–200 litres of boot space regardless of which car they choose.

What features and safety equipment does the Aeris CNG offer?

The Aeris comes with six airbags as standard across all variants, including the base Smart CNG at ₹6.29 lakh — a meaningful baseline for a car at this price point. The Dzire also offers six airbags as standard, so this is now table stakes in the segment rather than a differentiator.

The Aeris's safety package includes electronic stability programme, ABS with EBD, corner stability control, hill hold assist, ISOFIX mounts, tyre-pressure monitoring, front and rear parking sensors, and an HD reverse camera. Higher variants add a 360-degree HD camera with 2D and 3D views, a Blind View Monitor and a DVR dashcam. CNG variants specifically get a leak detection system, leak-proof materials and enhanced rear-impact protection.

The cabin features a 26.03-cm (approximately 10.25-inch) HD touchscreen, a 12.7-cm Digital Island Cluster, wireless Apple CarPlay and Android Auto, wireless charging, 65W USB-C charging, automatic climate control, ventilated leatherette front seats, rear AC vents, a rear centre armrest, a cooled glovebox, push-button start and auto-folding ORVMs. The iRA connected-car platform brings over 35 functions.

One honest downside: the Aeris gets a six-speaker audio system, which is a step down from the outgoing Tigor's eight-speaker setup. It is a minor point, but buyers who care about in-car audio should note it.

The Maruti Dzire offers a sunroof in select variants — a feature the Aeris does not have. For buyers who prioritise open-air feel, the Dzire has an advantage the Aeris cannot match.

Is the Aeris CNG-AMT worth the premium over the CNG MT?

The CNG-AMT premium over the equivalent CNG MT is ₹55,000 across all variants where both are offered (Pure through Accomplished). Whether that premium is worth it depends almost entirely on your daily driving conditions.

In stop-and-go urban traffic — the kind that defines commuting in Mumbai, Delhi, Bengaluru or Hyderabad — an AMT eliminates clutch fatigue and makes CNG driving genuinely more comfortable. The Aeris CNG-AMT is the only CNG compact sedan with an automatic transmission currently available in India, so if this combination matters to you, there is no alternative in the segment.

The trade-off is that AMTs in general can feel jerky at low speeds during gear changes, particularly in heavy traffic when the transmission hunts between gears. Tata has recalibrated the AMT for the Aeris, but buyers should test-drive the CNG-AMT specifically before committing, as real-world AMT behaviour varies from the test-track experience.

There is also a fuel efficiency consideration: AMTs typically return marginally lower mileage than manuals because of the way they manage gear changes under load. If the Aeris CNG MT's reported 26.49 km/kg already trails the Dzire CNG's 33.73 km/kg, the CNG-AMT variant will likely return slightly less than 26.49 km/kg in real-world use.

What are the Aeris CNG's honest weaknesses?

The reported 26.49 km/kg for the Aeris CNG versus the Dzire's ARAI-certified 33.73 km/kg is a 27% efficiency deficit. Even accounting for the fact that the Aeris figure is unconfirmed and real-world mileage for both cars will be lower, the Dzire is likely to remain the more fuel-efficient car. For high-mileage users — 2,000+ km per month — this gap translates to meaningful additional fuel costs over the ownership period.

The expected 227-litre CNG boot is functional but tight for a family of four on a weekend trip. The petrol Aeris's 419-litre boot is one of its strongest selling points; the CNG version gives most of that advantage back.

Tata did not publish an ARAI-certified mileage figure at launch. Buyers should wait for the official certification before making fuel-cost calculations, as reported figures can differ from certified ones.

The Dzire offers a sunroof in higher variants; the Aeris does not in any variant.

AMTs are not as smooth as torque-converter automatics or CVTs. The CNG-AMT combination is new and untested in the real world at the time of writing.

Published delivery dates differ between sources — CarWale reports 11 October 2026, while CarDekho reports 11 November 2026. Buyers should confirm directly with their dealership.

How does the Aeris CNG fit into the broader CNG sedan segment?

The compact sedan CNG segment in India is defined as sub-four-metre sedans offered with factory-fitted CNG systems, competing primarily on running costs, boot space and feature content. The three main players at launch are the Tata Aeris CNG, Maruti Suzuki Dzire CNG and Hyundai Aura CNG.

The Dzire CNG is the segment benchmark on mileage and brand trust, with Maruti's S-CNG system having a long track record and one of the widest service networks in India. The Aura CNG sits in the middle on price and mileage. The Aeris CNG differentiates on price entry point, boot space (petrol version), twin-cylinder technology, CNG-AMT availability and feature content.

For buyers who drive 1,200–1,500 km per month in urban conditions and want an automatic transmission, the Aeris CNG-AMT has no direct rival. For buyers who prioritise maximum CNG mileage above all else, the Dzire CNG remains the stronger choice. For buyers who carry large luggage regularly and want CNG, the Aeris's petrol-version boot advantage partially compensates for the CNG boot penalty.

CNG station availability is a practical constraint that affects all three cars equally. CNG infrastructure in India is concentrated in Gujarat, Delhi-NCR, Maharashtra and parts of Rajasthan and Uttar Pradesh. Buyers in cities with limited CNG stations — or those who regularly drive on highways between cities — should check the CNG station map for their routes before choosing CNG over petrol. The Aeris, like all CNG cars, can switch to petrol when CNG is unavailable, but the CNG mileage advantage disappears entirely when running on petrol.

For a broader look at how the Aeris CNG compares with other factory-fitted CNG options across segments, see our guide to the 5 Best CNG Cars in India (2026). If you are also considering CNG hatchbacks as an alternative, the Best CNG Hatchbacks Under 25 Lakh in India covers that segment in detail.

When do deliveries start, and what should buyers do now?

Bookings for the Tata Aeris opened on 25 September 2026 through authorised Tata dealerships and Tata's online channel. The delivery start date is reported as 11 October 2026 by some sources and 11 November 2026 by others — confirm with your local dealer before planning around either date.

The Aeris is built on Tata's X-Alfa architecture using ultra-high-strength steel, which Tata says improves structural rigidity and passive safety. The car is available in six exterior colours: Nitro Crimson, Dandeli Drizzle, Dune Glow, Daytona Grey, Pure Grey and Pristine White.

Buyers considering the CNG variants should specifically ask dealers about: the ARAI-certified mileage figure (once published), the exact CNG boot space measurement, the warranty terms for the twin-cylinder CNG system, and the availability of the CNG-AMT variant in their preferred colour and trim. Given that introductory prices may change, locking in a booking sooner rather than later is worth considering if the Aeris CNG fits your requirements.

The Aeris CNG is a genuinely competitive entry in the compact sedan segment — not a clear winner over the Dzire on every metric, but a strong alternative that offers the segment's only CNG-AMT combination, a larger petrol boot, and a lower entry price. The mileage gap is real and should not be dismissed; the feature content and technology are genuinely impressive for the price.