CNG Cars in India
CNG Cars in India

Buying guides for CNG cars in India: km/kg mileage, running costs, CNG prices, boot space with the tank, and the latest launches. Updated for 2026 models.

Compact SUVs lined up at a modern CNG filling station in India

Best CNG Compact SUVs Under ₹10 Lakh in India

Compact SUV buyers looking at CNG can choose between factory-fitted systems and retrofit kits. Both routes can cost under ₹10 lakh and reduce fuel costs, but they differ in integration, boot-space packaging, safety systems and warranty coverage.

SMBy Sandilya MEditor, Auto Forum India
Reviewed by Auto Forum India Editorial Team

Compact SUV buyers looking at CNG face a choice that most comparisons skip over entirely: some of these cars come with CNG built in from the factory, and some get it added on afterward through a retrofit kit.

Both routes land you under ₹10 lakh, both save you money at the pump, but they are not the same car underneath.

In this article, we'll break down what factory-fitted and retrofit CNG actually mean for you as an owner, then walk through 8 compact SUVs under ₹10 lakh across both categories, comparing price, mileage, boot space, transmission and warranty.

Factory-fitted vs retrofit CNG

Here is what each means:

Factory-fitted CNG: The CNG system is engineered into the car from the assembly line, as part of the manufacturer's own design and testing process.

Retrofit CNG: The car starts life as a pure petrol vehicle, and a CNG kit is added afterward, typically by the dealership or an authorised fitment centre, using a kit built by a third-party vendor.

The difference shows up in a few concrete ways:

Factory-fitted CNGRetrofit CNG
Designed byThe car manufacturer, as part of the vehicle itselfA third-party kit maker, added after the car is built
Engine and ECU tuningTuned for both petrol and CNG from the factoryNot originally designed around CNG; drivability on gas tends to be rougher
Tank packagingPlanned into the car's structure, generally less intrusive on boot spaceAdded afterward, usually a cruder fit that eats more into boot space
Safety systemsLeak sensors and automatic shut-off valves built in as part of the vehicle designDepends on the kit; safety features come from the third-party kit
WarrantyOne warranty from the manufacturer covers the whole car, CNG system includedSplit: the vehicle's warranty comes from the manufacturer, the CNG kit is covered separately by the kit maker
Where fittedAt the factory, before the car reaches the dealershipAt the dealership or an authorised fitment centre, after purchase
Neither option is wrong, but they are not directly comparable on paper. If you're cross-shopping a factory car against a retrofit one, weigh the price gap against the differences above rather than the sticker price alone.

Best CNG compact SUVs under ₹10 lakh in India

ModelCNG typeCNG price (ex-showroom)CNG engineCNG mileageBoot space (CNG)Transmission (CNG)
Maruti FronxFactory-fitted₹8.42 lakh77.5 PS, 98.5 Nm28.51 km/kg308L5-speed MT only
Maruti BrezzaFactory-fitted₹9.30 lakh88 hp, 121.5 Nm25.51 km/kg328L5-speed MT only
Tata PunchFactory-fitted₹6.69 lakh73.4 hp, 103 Nm26.99 km/kg (ARAI)210L5-speed MT, AMT
Nissan MagniteRetrofit₹6.89 lakh71 bhp, 96 Nm24 km/kg336L5-speed MT, AMT
Renault KigerRetrofit₹6.89 lakh71 bhp, 96 Nm~26 km/kg (estimated)405L5-speed MT only
Hyundai ExterFactory-fitted₹7.00 lakh69 hp, 95 Nm27.1 km/kg225L5-speed MT only
Toyota TaisorFactory-fitted₹8.45 lakh77.5 PS, 98.5 Nm28.5 km/kg308L5-speed MT only
Tata NexonFactory-fitted₹8.99 lakh72.5 hp, 170 Nm24 km/kg321L6-speed MT only
All prices are the entry-level CNG variant, ex-showroom. Higher CNG trims on several of these models cross ₹10 lakh.

1. Maruti Fronx

  • Pricing: ₹8.42 lakh
  • Fitting: Factory-fitted CNG

The Fronx carries Maruti's NEXA badge, the company's premium retail channel, into the CNG compact SUV space, a segment where most rivals sell through standard dealerships. Maruti's scale as India's largest carmaker also means the Fronx benefits from one of the widest parts and service networks in the country, a genuine practical advantage for a CNG car that needs regular tank inspections.

Features

  • 360-degree camera and head-up display on higher petrol trims (not confirmed on CNG trim)

  • 40+ Suzuki Connect features

  • 6 airbags standard across the range

  • Engine: 77.5 PS, 98.5 Nm.

  • Mileage: 28.51 km/kg.

  • Boot space: 308 litres.

  • Transmission: 5-speed manual only.

  • Warranty: 3 years/100,000 km standard, extendable up to 6 years/160,000 km through Maruti's extended warranty programmes.

2. Maruti Brezza

  • Pricing: ₹9.30 lakh
  • Fitting: Factory-fitted CNG

The Brezza was Maruti's first entry into the compact SUV segment when it launched in 2016, and remains one of the brand's best-selling nameplates today. It's sold through Maruti's Arena network, the company's mass-market retail channel, distinct from the NEXA outlets that carry the Fronx.

Features

  • Factory-fitted CNG across three trims (LXi, VXi, ZXi)

  • 6 airbags on higher trims

  • Recently updated for 2026 with a new 1.0-litre turbo-petrol option (petrol only, not available on CNG)

  • Engine: 88 hp, 121.5 Nm.

  • Mileage: 25.51 km/kg.

  • Boot space: 328 litres (reported).

  • Transmission: 5-speed manual only.

  • Warranty: 3 years/100,000 km standard, extendable through Maruti's extended warranty programmes.

3. Tata Punch

  • Pricing: ₹6.69 lakh
  • Fitting: Factory-fitted CNG

The Punch is Tata's smallest and most affordable SUV, built on the same safety-first design philosophy that's made Tata one of the strongest-rated brands in Bharat NCAP testing across its range.

Features

  • Twin-cylinder CNG tank layout

  • 5-star Bharat NCAP rating (facelift)

  • 10.25-inch touchscreen with wireless Android Auto and CarPlay across CNG trims

  • Voice-enabled sunroof on higher CNG variants

  • Engine: 73.4 hp, 103 Nm.

  • Mileage: 26.99 km/kg (ARAI).

  • Boot space: 210 litres.

  • Transmission: 5-speed manual and AMT.

  • Warranty: 3 years/100,000 km, whichever comes first.

4. Nissan Magnite

  • Pricing: ₹6.89 lakh
  • Fitting: Retrofit CNG

The Magnite is Nissan's volume driver in India, carrying most of the brand's local sales given how limited the rest of its India lineup is. Nissan has positioned the retrofit programme as part of a broader push to stay competitive in the budget SUV segment.

Features

  • Government-approved retrofit kit with integrated fuel-lid filling system

  • Available on both manual and AMT variants

  • 6 airbags standard across the range

  • Engine: 71 bhp, 96 Nm (approximate, as reported for the CNG configuration).

  • Mileage: 24 km/kg.

  • Boot space: 336 litres.

  • Transmission: 5-speed manual and AMT.

  • Warranty: Vehicle warranty is 3 years/100,000 km from Nissan; the CNG kit carries a separate 3-year/100,000 km warranty from Motozen, the kit manufacturer.

5. Renault Kiger

  • Pricing: ₹6.89 lakh
  • Fitting: Retrofit CNG

The Kiger is part of Renault's push to bring CNG retrofit kits across its entire India lineup, alongside the Kwid and Triber. Renault positions this as a standardised, warrantied alternative to the unauthorised aftermarket CNG conversions that remain common in this price segment.

Features

  • Government-approved retrofit kit with a 3-year warranty

  • Not available on automatic or turbo-petrol variants

  • 405-litre boot, among the largest in this segment

  • Engine: 71 bhp, 96 Nm (approximate, as reported for the CNG configuration).

  • Mileage: ~26 km/kg (estimated).

  • Boot space: 405 litres.

  • Transmission: 5-speed manual only.

  • Warranty: Vehicle warranty is 3 years/100,000 km from Renault; the CNG kit carries its own separate 3-year warranty.

6. Hyundai Exter

  • Pricing: ₹7.00 lakh
  • Fitting: Factory-fitted CNG

The Exter is Hyundai's smallest and most affordable SUV in India, introduced as an entry point into the brand's wider SUV lineup. Hyundai's position as one of India's largest carmakers means Exter owners get access to one of the country's most extensive dealer and service networks outside of Maruti's.

Features

  • Dual-cylinder CNG tank in an underbody-adjacent layout

  • 6 airbags standard

  • Electric sunroof (segment-first) and dashcam on higher CNG trims

  • Engine: 69 hp, 95 Nm.

  • Mileage: 27.1 km/kg.

  • Boot space: 225 litres.

  • Transmission: 5-speed manual only.

  • Warranty: 3 years/unlimited km standard.

7. Toyota Taisor

  • Pricing: ₹8.45 lakh
  • Fitting: Factory-fitted CNG

The Taisor brings Toyota's badge into the CNG compact SUV segment, a price bracket the brand otherwise rarely competes in directly in India. It's built on a shared platform and CNG powertrain with a sibling model sold under a different badge, which means buyers here are largely choosing between service experience and dealer network rather than mechanicals.

Features

  • Single CNG trim (E CNG) rather than a full CNG range across multiple trims

  • Wireless Android Auto and Apple CarPlay

  • Up to 6 airbags depending on trim

  • Engine: 77.5 PS, 98.5 Nm.

  • Mileage: 28.5 km/kg.

  • Boot space: 308 litres.

  • Transmission: 5-speed manual only.

  • Warranty: 3 years/100,000 km standard, extendable up to 5 years/220,000 km through Toyota's extended warranty programme.

8. Tata Nexon

  • Pricing: ₹8.99 lakh
  • Fitting: Factory-fitted CNG

The Nexon has been one of Tata's best-selling SUVs since launch, and it sits within a lineup where Tata has pushed to bring advanced safety technology, including ADAS on select petrol variants, down into the mass-market segment, though ADAS itself is not offered on the CNG variant. Only the Nexon's entry-level CNG trims fall under the ₹10 lakh mark; the range extends well beyond it at higher trims.

Features

  • Turbocharged 1.2-litre engine on CNG, unusual for this segment

  • 5-star Bharat NCAP rating

  • 6 airbags standard across the range

  • Engine: 72.5 hp, 170 Nm.

  • Mileage: 24 km/kg (ARAI).

  • Boot space: 321 litres.

  • Transmission: 6-speed manual only.

  • Warranty: 3 years/100,000 km standard, extendable up to 5 years.

Conclusion

CNG compact SUVs under ₹10 lakh span a wider range of engineering than the price tags suggest. Factory-fitted options like the Punch, Exter, Fronx, Taisor, Nexon and Brezza build the CNG system into the car from day one, with a single warranty covering the whole vehicle.

Retrofit options like the Magnite and Kiger get you into a CNG SUV for a similar price, but with the trade-offs of a third-party kit and split warranty coverage. Match the choice to what matters most to you: outright price, mileage, boot space, or a factory-backed system.

FAQs

Is CNG worth it in a compact SUV?

If your daily running is high, CNG's lower running cost compared to petrol usually pays off the price premium over time. The trade-off is reduced boot space and, on most of these cars, no automatic transmission option.

What's the difference between factory-fitted and retrofit CNG?

Factory-fitted CNG is built and warrantied by the carmaker as part of the vehicle. Retrofit CNG is a kit added after the car is built, typically by the dealership, with its own separate warranty from the kit manufacturer.

Which CNG compact SUV under ₹10 lakh has the best mileage?

The Maruti Fronx and Toyota Taisor lead this list at 28.51 km/kg and 28.5 km/kg respectively, both running the same underlying CNG powertrain.

Do any of these CNG compact SUVs come with an automatic transmission?

The Tata Punch and Nissan Magnite are the only two on this list that offer an automatic (AMT) option on their CNG variant. The rest are manual-only on CNG.

Last verified: 2026-09-11