Yes, it is absolutely safe as a gas. Being lighter than air, in case of a leak it rises up and disperses into the atmosphere. This property precisely makes it a safe fuel.

The conversion cost depends upon the type and make of the automobile and the conversion kit. Roughly the cost varies between Rs. 25,000 to Rs. 65,000.

Yes. You are provided with a switch on the dashboard of your car. So once you flip the switch, you can make the car operational on petrol or CNG alternatively. 

The tank which has a storage capacity of 60 water liters can store up to 8 to 10 kilograms of CNG. A mid-sized car of about 1200cc can run up to 175 kms to 200 kms in one filling.

An electronic fuel management system is installed as part of the CNG conversion kit in your vehicle on the dashboard. This system will show you the CNG levels in your vehicle.

No. CNG does not have any known harmful effects on your vehicle. The absence of any lead content in CNG helps avoid lead fouling of plugs, thus enhancing plug life. Upon entering the engine in the form of a gas, CNG doesn't disturb the presence of lubricating oil in the engine, and reduces chances of wear and tear. Further, it does not contaminate or dilute crankcase oil, giving a new lease of life to the engine.

Under the latest technology, a diesel car cannot run on dual fuel mode. A diesel vehicle can be converted to run on CNG, but the conversion cost is higher than the conversion of petrol vehicles.

As compared to alternative fuel, CNG emits lesser amount of Carbon dioxide and other pollutants. This helps to reduce the pollution & health related problems caused by automobile pollutants. Further, due to its low price as compared to its alternative fuel, with improved mileage, it helps to save more money. With the emergence of new sector i.e. Natural Gas, it has generated more opportunities in business as well as in terms of employment. Thus large-scale usage of CNG not only reduces pollution, but also helps development indirectly within the nation.