Tata Motors, India's largest Commercial Vehicles manufacturer has developed India's first bio-methane bus at the Bio-energy program, called 'Urja Utsav'. This bus runs on methane that generally produced out of bio-degradable materials like kitchen waste.

According to the company, the use of Bio-CNG will help in smart cities of the future. Using food waste to produce bio-methane and then it in bus leads to an environment free vehicles. This gas, which gets produced out of natural degradation process, escapes into the atmosphere unused. If using it in engines, it reduces the net impact on the environment and at the same time produces useful power.