Tata Aeris launches September 25, 2026 as the Tigor's successor, with a factory-fitted iCNG variant producing ~76 hp and expected pricing from ~₹6 lakh ex-showroom.
The Tata Aeris is scheduled to launch on September 25, 2026, replacing the Tigor in Tata's sub-4-metre sedan lineup — and a leaked dealership video published just hours before the official reveal confirms a factory-fitted iCNG variant will be part of the launch range from day one.
The leak, first reported by Autocar India, shows a showroom-ready Aeris iCNG being driven off a transport trailer, with the 'iCNG' badge clearly visible on the boot lid. This is not a dealer-fitted aftermarket kit — Tata's iCNG is defined as a factory-integrated, twin-cylinder CNG system that preserves the manufacturer's warranty and passes through ARAI homologation as part of the vehicle's type approval. That distinction matters for buyers who want CNG without voiding their warranty or compromising on safety certification.
Before diving into the details, here is how the Aeris iCNG stacks up against its two closest rivals at launch:
| Model | CNG Kit Type | ARAI CNG Mileage | CNG Variant Price (Ex-Showroom) | CNG Power Output | Boot Space Trade-off | Gearbox Options |
|---|---|---|---|---|---|---|
| Tata Aeris iCNG | Factory-fitted, twin-cylinder | Not yet ARAI-certified (launch day) | ~₹7.5–9 lakh (expected) | ~76 hp / 97 Nm | Twin cylinders under boot floor; usable boot retained | 5-speed MT, 5-speed AMT |
| Maruti Suzuki Dzire CNG (S-CNG) | Factory-fitted, single-cylinder | 33.73 km/kg (ARAI claim) | ₹9.14–9.69 lakh (ex-showroom) | 69.6 hp / 98.5 Nm | Single cylinder in boot; ~204 litres usable | 5-speed MT only |
| Hyundai Aura CNG | Factory-fitted, single-cylinder | 28.4 km/kg (ARAI claim) | ₹8.13–9.27 lakh (ex-showroom) | 68 hp / 95.2 Nm | Single cylinder reduces boot to ~186 litres | 5-speed MT only |
Aeris iCNG pricing and ARAI mileage are pre-launch estimates based on Tigor iCNG positioning and Tata's pricing pattern. Dzire CNG and Aura CNG figures are manufacturer ARAI claims, not real-world results. Real-world CNG mileage typically runs 15–20% below ARAI figures.
What exactly is the Tata Aeris, and why does it replace the Tigor?
The Tata Aeris is a next-generation sub-4-metre notchback sedan built on the same platform as the Tiago hatchback, designed to replace the Tigor which has been in production since 2017. Tata has given the Aeris sheet-metal changes beyond a simple facelift — new bumpers front and rear, a redesigned grille with a black bar element borrowed from the updated Tiago, sweptback headlamps, and a sculpted boot lid with a ducktail-style spoiler element.
The Aeris retains the Tigor's notchback roofline and shark-fin antenna, but the C-shaped corner bumpers front and rear are new, as are the two-tone alloy wheels and the 'Aeris' lettering on the front doors, according to Autocar India's report. The rear tail-lamp design mirrors the Tiago's layout with the 'Tata' wordmark in the centre.
Tata's promotional tagline for the Aeris is "Start Scoring, Stop Being Boring" — a pointed dig at the Tigor's reputation as a conservative, fleet-oriented car, per Mint's coverage. The Aeris is clearly aimed at private buyers who want a sedan with more visual personality than its predecessor.
The Tigor's current price range of ₹5.70 lakh to ₹9.10 lakh (ex-showroom) gives a reasonable anchor for Aeris pricing, though Tata is expected to price the new model at a slight premium given the feature upgrades. An expected starting price of around ₹6 lakh (ex-showroom) for the base petrol variant has been widely cited, with iCNG variants likely sitting higher in the range.
What does the leaked video reveal about the Aeris iCNG?
The leaked footage, sourced from the YouTube channel Autobros India and reported by Autocar India, shows the iCNG variant specifically — identifiable by the 'iCNG' badge on the boot lid and the twin-cylinder setup that Tata uses across its CNG range. The variant shown has powered ORVMs with the Tiago's mirror design, steering-mounted controls, manual AC (suggesting a mid-range trim), dual phone-storage trays, front cup holders, front and rear armrests, a manually dimming interior rearview mirror, and individual headrests with three-point seatbelts for all five occupants.
Safety kit is expected to include 6 airbags, ABS with EBD, and ISOFIX child-seat anchors across variants — a meaningful step up from the Tigor's base-variant safety spec.
The interior features a two-tone cabin theme and free-standing displays on the dashboard. Top variants will likely get a 10.25-inch touchscreen infotainment system, a fully digital instrument cluster, and a 360-degree surround-view camera — features the Tigor never offered, according to CarOnPhone's report. The variant captured in the leak appears to be a mid-spec trim given the manual AC, so the full feature list will depend on which trim the iCNG badge is available across.
What engine and gearbox will the Aeris iCNG use?
The Aeris iCNG is expected to carry forward the same 1.2-litre naturally aspirated three-cylinder petrol engine that powers the Tigor iCNG, with CNG-specific output figures of approximately 76 hp and 97 Nm of torque. The petrol version of the same engine produces 86 hp and 113 Nm — the power drop on CNG is a trade-off inherent to the fuel type, not a Tata-specific limitation.
Mint reports the petrol engine at 84 bhp, while Autocar India quotes 86 hp — the minor discrepancy likely reflects different measurement standards (PS vs hp). The CNG output of 76 hp / 97 Nm is consistent with the Tigor iCNG's current figures and should carry over largely unchanged.
Gearbox options are expected to be a 5-speed manual and a 5-speed AMT — the same pairing available on the Tigor iCNG. The AMT option on the CNG variant is a genuine differentiator: the Maruti Dzire CNG is only available with a manual gearbox, and the Hyundai Aura CNG similarly does not offer an automatic. For city buyers who want CNG running costs without a clutch pedal, the Aeris iCNG AMT will be the only factory-fitted option in the segment at launch.
How does the Aeris iCNG compare to the Maruti Dzire CNG on running costs?
The Maruti Suzuki Dzire CNG uses Maruti's single-cylinder S-CNG system, with an ARAI-claimed efficiency of 33.73 km/kg — the highest claimed CNG mileage in the sub-4-metre sedan segment. At Delhi CNG prices of approximately ₹76 per kg (as of September 2026), the Dzire CNG's ARAI-based running cost works out to roughly ₹2.25 per km. Real-world mileage of around 27–28 km/kg would push that to approximately ₹2.71–₹2.81 per km.
The Tigor iCNG — the closest proxy for what the Aeris iCNG will deliver — does not have a published ARAI CNG mileage figure that matches the Dzire's benchmark. Tata has not yet released ARAI certification data for the Aeris iCNG, which is expected on launch day. Until that number is published, any running-cost comparison is speculative.
The Tigor iCNG's real-world CNG mileage has generally been reported in the 22–25 km/kg range by owners, which at ₹76/kg translates to roughly ₹3.04–₹3.45 per km. If the Aeris iCNG matches or improves on this, it will still trail the Dzire CNG on pure fuel economy — but the AMT option, twin-cylinder boot packaging, and expected feature upgrades may compensate for buyers who prioritise convenience over the last rupee per kilometre.
The Dzire CNG's single-cylinder setup also comes with a meaningful boot-space penalty — the cylinder sits in the boot, reducing usable luggage space to around 204 litres. Tata's twin-cylinder iCNG system mounts the cylinders under the boot floor, which preserves more usable boot volume. This is a real-world advantage that matters on family road trips, even if it does not show up in a mileage chart.
The Dzire CNG's weakness is its manual-only gearbox. For buyers in stop-start city traffic — exactly the conditions where CNG economics make the most sense — the Aeris iCNG AMT will be a compelling alternative even if its km/kg figure is lower.
What are the Aeris iCNG's honest weaknesses going into launch?
Power deficit on CNG is real. At approximately 76 hp on CNG versus 86 hp on petrol, the Aeris iCNG will feel noticeably less responsive, particularly on highway overtakes and on inclines. This is not unusual for CNG cars — the Dzire CNG produces 69.6 hp and the Aura CNG 68 hp — but buyers coming from a petrol sedan should calibrate expectations accordingly.
ARAI mileage is unconfirmed. The Dzire CNG's 33.73 km/kg ARAI claim is a published, certified figure. The Aeris iCNG's efficiency number does not exist yet as of launch day. Buyers should wait for ARAI certification and, more usefully, for owner real-world reports before making running-cost calculations.
CNG station availability remains patchy outside metros. This is a segment-wide constraint, not specific to the Aeris, but it is worth stating for buyers in Tier 2 and Tier 3 cities. CNG infrastructure is concentrated in Delhi-NCR, Mumbai, Pune, Ahmedabad, and a handful of other cities. If your daily commute takes you beyond well-served corridors, the CNG variant's economics deteriorate sharply.
The AMT has its quirks. Tata's 5-speed AMT, shared with the Tiago and Tigor, is functional but not smooth by automatic-gearbox standards. The characteristic head-nod during upshifts is present, and the AMT is not suited to spirited driving. It is best understood as a convenience feature for city traffic, not a replacement for a torque-converter automatic.
Pricing premium over the Tigor iCNG. If Tata prices the Aeris iCNG at a meaningful premium over the outgoing Tigor iCNG (which tops out at ₹9.10 lakh ex-showroom), it risks overlapping with the Dzire CNG's pricing band where Maruti's brand trust and fuel economy numbers are harder to argue against.
How does the Aeris iCNG's twin-cylinder system differ from the Dzire CNG's single-cylinder setup?
Tata's iCNG system uses two smaller cylinders rather than one large cylinder, and this has practical consequences beyond marketing language.
With a single large cylinder in the boot (as used in the Dzire CNG and Aura CNG), the cylinder occupies a fixed, visible chunk of boot space. The Dzire CNG's 204-litre usable boot is workable but noticeably smaller than its petrol sibling's 382-litre boot. On a family trip with luggage for four, this becomes a genuine inconvenience.
Tata's twin-cylinder layout, used across the Tiago iCNG, Tigor iCNG, and now the Aeris iCNG, mounts the two smaller cylinders under the boot floor. This preserves more of the boot's usable depth, though the floor is raised slightly. The total CNG storage capacity is comparable to a single-cylinder setup, but the packaging is more practical for everyday use.
This is one area where Tata's iCNG architecture has a genuine engineering advantage over the Dzire CNG — and it is worth factoring in if boot space matters to your buying decision. For more on how twin-cylinder CNG systems compare across segments, see our guide to the best CNG cars in India.
What features will the Aeris get over the Tigor?
Based on the leaked footage and official teasers, the Aeris brings several upgrades over the Tigor. A 10.25-inch free-standing touchscreen infotainment system replaces the Tigor's smaller unit. A fully digital instrument cluster replaces the semi-digital display. A 360-degree surround-view camera is expected on higher trims — a segment first for a Tata sedan. Wireless smartphone connectivity, Type-C charging ports, rear AC vents, and wireless charging are also anticipated on upper variants, according to Autocar India, Mint, and mycarjunction.com.
The exterior receives new twin-barrel LED headlamps with integrated DRLs, a new front bumper with C-shaped corners, redesigned alloy wheels in a two-tone finish, and a new rear bumper with integrated static reflectors. The 'Aeris' lettering on the front doors is a design detail that distinguishes it from the Tigor's more anonymous exterior.
The Tigor never offered a 360-degree camera, a fully digital cluster, or wireless charging. These additions push the Aeris meaningfully upmarket within the sub-4-metre sedan segment — though whether they translate to higher transaction prices will depend on Tata's variant strategy.
Who should consider the Aeris iCNG, and who should wait for more data?
The Aeris iCNG makes the most sense for buyers who tick several specific boxes: a daily commute in a city with reliable CNG infrastructure, a preference for factory-fitted CNG over aftermarket kits (which void warranties and carry safety risks), a need for an automatic gearbox option on CNG (where the Aeris iCNG AMT is currently the only factory-fitted choice in the segment), and a preference for more usable boot space than the Dzire CNG's single-cylinder setup allows.
Buyers who should wait: anyone who prioritises fuel economy above all else should hold off until Tata publishes ARAI certification data for the Aeris iCNG and until real-world owner reports emerge. The Dzire CNG's 33.73 km/kg ARAI claim is a hard number to beat, and the Aeris iCNG's equivalent figure is unknown at launch.
Buyers in cities without dense CNG networks should consider the petrol variant instead — the economics of CNG only work when you can fill up regularly and conveniently. For a broader look at which CNG cars make sense across segments, our best CNG cars in India guide covers the full space.
The Aeris also arrives alongside an EV variant (the Aeris EV), which Tata has confirmed but not detailed yet. For buyers who can charge at home, the EV will likely offer lower running costs than even the iCNG — but at a significantly higher purchase price. The iCNG sits in the middle: lower running costs than petrol, lower upfront cost than EV, with the infrastructure dependency that CNG always carries.
What happens to the Tigor after the Aeris launches?
The Tigor is expected to be phased out following the Aeris launch, though Tata may continue selling existing Tigor stock through dealerships for a period. The Tigor iCNG, currently priced from approximately ₹7.50 lakh to ₹9.10 lakh (ex-showroom), will likely see discounted pricing as the Aeris takes over the segment positioning.
For buyers on a tight budget, a discounted Tigor iCNG from existing stock could represent good value — it uses the same engine, the same twin-cylinder CNG system, and the same gearbox options as the Aeris iCNG, at lower transaction prices. The trade-off is the older interior, smaller infotainment screen, and absence of the 360-degree camera and digital cluster.
The Aeris launch also signals Tata's continued commitment to the sub-4-metre sedan segment at a time when most manufacturers are pivoting resources toward compact SUVs. The Dzire, Aura, and Amaze remain the segment's volume leaders, and Tata's ability to challenge them will depend on competitive pricing and a strong CNG mileage certification number — both of which will be clearer by the end of September 25, 2026.
For buyers comparing CNG hatchbacks as an alternative to the sedan format, our CNG hatchbacks under ₹10 lakh guide covers the Tiago iCNG and its rivals in detail.
Sources
- Tata Aeris leaked in full ahead of launch | Autocar India
- Tata Aeris teased ahead of September 25 launch: Tiago-inspired lights, new alloy wheels revealed | Mint
- Tata Aeris Leaked in Full Ahead of Official Launch: Everything You Need to Know | CarOnPhone
- Tata Aeris Teased Once Again Ahead Of September 25 Launch | mycarjunction.com
- Tata Motors Official Website