polishing. Naphtha is primarily used by power, Fertilizer, steel and Petrochemical units. In power, steel units it is used as a fuel, whereas in petrochemical, chemical, fertilizer units it is used as a feedstock. GAIL is operating seven gas processing units (GPU) located at Vijaipur (two units), Auraiya, Vaghodia, Usar, Lakwa and Gandhar plants for production of LPG and GCU at Pata plant for production of polymer. In the process of production of main products, such as LPG and polymer through GPU/GCU except the Usar, the following by-products- liquid hydrocarbons (LHC) are produced: LPG production and transmission Liquefied petroleum gas (LPG) is the most widely used domestic and commercial fuel in India. Over the past four years, GAIL has emerged as one of the major LPG producers in the country. Around 90 per cent of the LPG is consumed in India as fuel by the household sector, while the balance is sold to industrial and commercial customers. GAIL has seven LPG Plants, two at Vijaipur and one at Vaghodia, and one each in Lakwa (Assam), Auraiya (UP), Gandhar (Gujarat) and Usar (Maharashtra), producing over 1 million TPA LPG and other liquid hydrocarbons. GAIL is the first company in India to own and operate pipelines for LPG transmission. It has 2038 km LPG pipeline network 1,415 km of which connects the western and northern parts of India and 623 km of networks is in the southern part of the country connecting to the Eastern Coast. The LPG transmission system has a capacity to transport 3.8 million tonnes per year of LPG. LPG transmission through pipelines was 3145 TMT in the year 2013–14. GAIL has a share of about 10% of the Indian LPG market in LPG production and 7% in LPG sales. GAIL produces LPG through fractionation in gas processing units, known as straight run LPG. GAIL's LPG is an eco-friendly fuel and provides a cheaper and effective means of reducing pollution and increasing productivity. GAIL LPG is being supplied to PSU Oil Marketing Companies namely IOCL, BPCL and HPCL ex-GPUs at Import Parity Price. Petrochemicals GAIL diversified from gas marketing and transmission into the polymer business by setting up North India's first gas based Petrochemicals complex. Even without having any prior experience in petrochemicals, GAIL commissioned the plant successfully in the year 1999. The petrochemical business is one of the core focus areas of GAIL. GAIL owns and operates a