LPG is a clean and safe fuel that has a range of properties closest to petrol. It is a by-product of petrol refining or wet natural gas production. It is a group of hydrocarbon-based gases which include ethane, ethylene, propane, propylene, normal butane, butylene, isobutane, and isobutylene. Under slight pressure, LPG turns into liquid form and can then be stored in tanks. LPG is converted back to gas before being burned. This mixture of hydrocarbon gases are in gaseous form under regular conditions of atmospheric pressure. These gases can be liquefied by increasing the pressure and decreasing the temperature. LPG is mostly used for cooking and heating but also for transportation