A fifty five seat bus powered by biogas, sourced from cow dung, was launched in the city on 31st March. It is India’s first such bus service. A nominal fare of Re 1 will be charged from every passenger. The bus, to run on the 17.5 km Ultadanga-Garia stretch, will be one among the fleet of 16 buses to be deployed across Kolkata and encompassing areas. “The bus offers a mileage of six km for one kilogram of biogas that costs Rs 20,” Jyoti Prakash Das, Chairman and Managing Director of Phoenix India Research and Development Group said.