Best CNG Cars in India Under 20 Lakhs (2025): Price, Mileage & Features Compared
1. Maruti Suzuki Swift CNG.
Engine : 1.2L Dual Jet Petrol + CNG
Power (CNG) : 77.5 PS, 98.5 Nm
Transmission : 5-speed manual
Mileage : 30.90 km/kg
Price : ₹7.85–8.53 lakh (ex-showroom)
Highlights : India’s most fuel-efficient CNG hatchback. Lightweight, agile, great for city driving.
2. Hyundai Grand i10 NIOS CNG
Engine : 1.2L Kappa Petrol + CNG
Power : 69 PS, 95 Nm
Transmission : 5-speed manual
Mileage : ~28.5 km/kg
Price : ₹7.68–8.45 lakhs average ex-showroom
Highlights : It is a premium hatchback car with sturdy build, touchscreen infotainment, dual airbags as standard.
3. Maruti Suzuki Dzire CNG
Engine : 1.2L K12C Petrol + CNG
Power : 77.5 PS, 98.5 Nm
Mileage : 31.12 km/kg
Transmission : 5-speed manual
Price : ₹8.43–9.31 lakhs
Highlights : Best mileage in its class. It is a compact sedan with decent boot and rear seat comfort.
4. Hyundai Aura CNG
Engine : 1.2L Kappa Petrol + CNG
Power : 68 PS, 95 Nm
Mileage : 28 km/kg
Transmission : 5-speed manual
Price : ₹8.30–9.10 lakh
Highlights : Modern design, wireless Android Auto/Apple CarPlay, spacious rear, Hyundai’s good quality interior.
5. Tata Tiago iCNG
Engine : 1.2L Revotron petrol + CNG
Power : 73.4 PS, 95 Nm
Transmission : 5-speed manual
Mileage : 26.49 km/kg
Price : ₹6.59–8.90 lakh
Highlights : 4-star GNCAP rating, dual-cylinder CNG layout that offers more boot space, India’s best built car.
6. Tata Tigor iCNG
Engine : 1.2L petrol + CNG
Power : 73.4 PS, 95 Nm
Transmission : 5-speed manual
Mileage : 26.49 km/kg
Price : ₹7.70–9.40 lakh
Highlights : Tata safety and unique twin-cylinder boot CNG system available. Hatchback which is best for city commuting.
7. Maruti Ertiga S-CNG
Engine : 1.5L Petrol + CNG
Power : 88 PS, 121.5 Nm
Mileage : 26.11 km/kg
Transmission : 5-speed manual
Price : ₹9.29–12.54 lakh
Highlights : The best-selling 7-seater MPV in India. It has dual AC, making it very popular with large families.
8. Maruti XL6 CNG
Engine : 1.5L Petrol + CNG
Power : 88 PS, 121.5 Nm
Mileage : 26.32 km/kg
Transmission : 5-speed manual
Price : ₹12.56–12.76 lakh
Highlights : Premium 6-seater with captain’s seat, Nexa-only car with CNG option, slightly more expensive than Ertiga and offers more features.
9. Hyundai Exter CNG
Engine : 1.2L Petrol + CNG
Power : 69 PS, 95 Nm
Mileage : 27.10 km/kg
Transmission : 5-speed manual
Price : ₹8.24–8.97 lakh
Highlights : Hyundai Exter looks like a compact SUV. Which makes urban transportation easy, along with being full of features.
10. Tata Punch iCNG
Engine : 1.2L petrol + CNG
Power : 73.4 PS, 103 Nm
Mileage : 26.99 km/kg
Transmission : 5-speed manual
Price : ₹7.10–9.68 lakh
Highlights : Small SUV with impressive ground clearance, 5-star GNCAP safety rating, dual-cylinder CNG setup without compromising on boot space, Tata’s best-selling car.
11. Tata Altroz iCNG
Engine : 1.2 litre petrol + CNG
Power : 73.4 PS, 103 Nm
Mileage : 26.20 km/kg
Transmission : 5-speed manual
Price : ₹7.59–10.74 lakh
Highlights : Premium hatchback, stylish, very spacious car, comes with top safety ratings.
12. Maruti Grand Vitara CNG
Engine : 1.5 litre petrol + CNG
Power : 87 PS, 121.5 Nm
Mileage : ~26.6 km/kg
Transmission : 5-speed manual
Price : ₹13.05–15.39 lakh
Highlights : Suzuki offers a compact SUV with features like panoramic sunroof. The Grand Vitara also has a hybrid variant.
View full Specification of Grand Vitara
13. Toyota Urban Cruiser Highrider CNG
Engine : 1.5-litre petrol + CNG
Power : 88 PS, 121.5 Nm
Mileage : ~26.6 km/kg
Transmission : 5-speed manual
Price : ₹13.23–15.29 lakh
Highlights : Sharing a platform with the Grand Vitara, Toyota is well known for its reliability.
14. Toyota Rumian CNG
Engine : 1.5 litre petrol + CNG
Power : 87 PS, 121.5 Nm
Mileage : ~26.11 km/kg
Transmission : 5-speed manual
Price : ₹11.39–13.68 lakh
Highlights: This is the Ertiga but in the form of a Toyota, similar mechanicals but the styling is different.
FAQS for best cng cars in india
Q1: Which is the best CNG car in India right now?
A: Some of the best CNG cars in India include the Maruti Suzuki Swift CNG, Hyundai Aura CNG, Tata Tiago iCNG, and Maruti Ertiga S-CNG. These cars offer excellent mileage, affordable running costs, and wide service support.
Q2: Which CNG car is best for family use in India?
A: For families, the Maruti Ertiga S-CNG and Toyota Rumion CNG are great choices. They offer 7-seater comfort, spacious cabins, and impressive mileage around 26 km/kg.
Q3: Which is the best CNG hatchback in India?
A: The Tata Tiago iCNG and Maruti Swift CNG are among the best hatchback options. They provide solid build quality, high fuel efficiency (over 26 km/kg), and good resale value.
Q4: What are the disadvantages of CNG cars for highway use?
A:
- Lower power and acceleration at high speeds
- Reduced boot space due to the CNG tank
- Limited availability of CNG refueling stations on highways
- Not recommended for steep inclines or mountain routes
Q5: Can I use a CNG car for long-distance travel?
A: Yes, you can, but with some planning. Ensure the route has CNG stations, drive at moderate speeds, and consider carrying a spare tyre, as boot space is limited. Some dual-fuel CNG cars allow you to switch to petrol when CNG runs out.
Q6: Which is the best CNG car in India under 20 lakhs?
A: The best CNG car in India under ₹20 lakhs includes options like the Tata Punch iCNG, Hyundai Aura CNG, Maruti Swift CNG, and Ertiga S-CNG. These models offer a balance of mileage, performance, and safety.
Q7: Which CNG car gives the highest mileage in India?
A: The Maruti Suzuki Dzire CNG offers one of the highest CNG mileages in India at around 31.12 km/kg, followed closely by the Swift and Grand i10 NIOS CNG. mileage is key points for Maruti cars.
Q8: Are CNG cars good for long-term use in India?
A: Yes, CNG cars are ideal for daily commuting and city use due to their low running costs. However, they may not be as powerful as petrol/diesel for highway performance. Regular servicing ensures long-term reliability.
Q9: What is the average maintenance cost of CNG cars in India?
A: The average annual maintenance cost of a CNG car in India is around ₹6,000–₹10,000, depending on the brand and usage. CNG kits require timely checks for leakages and pressure.
Q10: Which CNG SUVs are available under ₹20 lakh?
A: Top CNG SUVs under ₹20 lakhs include the Maruti Grand Vitara, Tata Punch iCNG, Maruti Brezza S-CNG, and Hyundai Exter CNG. They offer the SUV stance with CNG economy.
Q11: Do CNG cars have boot space issues?
A: Some traditional CNG cars have reduced boot space, but models like the Tata Altroz iCNG and Tiago iCNG use dual-cylinder setups that preserve luggage space.so if you plan to buy CNG cars please check Cylinder setup.
Q12: Can I convert my petrol car to CNG legally in India?
A: Yes, conversion is legal if done through an RTO-approved CNG kit installer. After installation, the RC must be updated with “Fuel Type: Petrol + CNG”.
Q13: Is CNG better than petrol for city driving?
A: Yes. CNG is more economical for city drives with consistent speeds. It emits fewer pollutants and helps cut fuel costs by nearly 50% compared to petrol.
