With green fuels playing a pivotal role in reduction of air pollution, the Gas Authority of India Limited (GAIL), its joint venture company Bengal Gas, and Hindustan Petroleum Corporation Limited (HPCL) have joined hands to invest Rs 170 billion over the next five years. This will be done for projects including piped gas distribution and setting up of compressed natural gas (CNG) stations. To set up the pipeline, GAIL and Bengal Gas will jointly invest Rs 90 billion. Meanwhile,HPCL plans on investing Rs 80 billion in the overall city gas and CNG station infrastructure. By September 2023, the CNG pipeline from Durgapur is expected to reach Kolkata. As of now, only 60-70 kms of Durgapur to Haldia pipeline have been completed in patches.