CNG and petrol prices vary a lot between Indian cities — and so does the case for converting your car. The table below compares current petrol and CNG prices in every major city with retail CNG, the per-km saving for a typical hatchback (18 km/l petrol, 28 km/kg CNG), and the payback period on a Rs 65,000 conversion kit at 1,500 km a month. Prices as of August 2026.
| City | Petrol (Rs/L) | CNG (Rs/kg) | Saving per km | Kit payback |
|---|---|---|---|---|
| Delhi | 102.12 | 83.09 | Rs 2.71 | 16.0 months |
| Noida | 101.89 | 91.70 | Rs 2.39 | 18.2 months |
| Gurugram | 102.97 | 88.12 | Rs 2.57 | 16.8 months |
| Ghaziabad | 101.88 | 91.70 | Rs 2.39 | 18.2 months |
| Faridabad | 102.97 | 99.70 | Rs 2.16 | 20.1 months |
| Mumbai | 111.21 | 86.00 | Rs 3.11 | 13.9 months |
| Navi Mumbai | 112.46 | 86.00 | Rs 3.18 | 13.6 months |
| Thane | 111.38 | 85.75 | Rs 3.13 | 13.9 months |
| Pune | 112.02 | 97.50 | Rs 2.74 | 15.8 months |
| Ahmedabad | 101.83 | 94.02 | Rs 2.30 | 18.8 months |
| Surat | 102.46 | 88.76 | Rs 2.52 | 17.2 months |
| Vadodara | 101.46 | 92.10 | Rs 2.35 | 18.5 months |
| Rajkot | 103.00 | 88.76 | Rs 2.55 | 17.0 months |
| Lucknow | 101.86 | 99.50 | Rs 2.11 | 20.6 months |
| Kanpur | 102.26 | 100.00 | Rs 2.11 | 20.5 months |
| Agra | 101.54 | 99.50 | Rs 2.09 | 20.8 months |
| Varanasi | 101.86 | 92.67 | Rs 2.35 | 18.4 months |
| Jaipur | 114.19 | 96.50 | Rs 2.90 | 15.0 months |
| Hyderabad | 115.69 | 109.00 | Rs 2.53 | 17.1 months |
| Bengaluru | 110.93 | 97.00 | Rs 2.70 | 16.1 months |
| Chennai | 107.76 | 97.00 | Rs 2.52 | 17.2 months |
| Indore | 114.99 | 97.76 | Rs 2.90 | 15.0 months |
| Bhopal | 114.57 | 96.00 | Rs 2.94 | 14.8 months |
| Chandigarh | 101.54 | 99.90 | Rs 2.07 | 20.9 months |
| Ludhiana | 104.82 | 91.25 | Rs 2.56 | 16.9 months |
| Amritsar | 104.82 | 91.33 | Rs 2.56 | 16.9 months |
| Patna | 113.35 | 92.90 | Rs 2.98 | 14.5 months |
| Kolkata | 113.47 | 99.50 | Rs 2.75 | 15.8 months |
| Nagpur | 111.69 | 94.90 | Rs 2.82 | 15.4 months |
| Coimbatore | 108.44 | 88.50 | Rs 2.86 | 15.1 months |
| Kochi | 113.50 | 101.00 | Rs 2.70 | 16.1 months |
Open your city’s page for the full monthly-savings table, payback analysis and a calculator preloaded with local prices — or use the CNG vs Petrol vs Diesel Calculator with your own numbers.