The project, spearheaded by SIAM along with participation from all major automobile makers in the country, aims at modifying engines to suit the new blend, giving optimum power with minimum emission. “The final modification in the prototype engine has been done and in the next 2-3 months, the on-road trials on a fleet of test vehicles would begin,” SIAM director general Dilip Chenoy told Business Standard.

The project was taken up under the National Hydrogen Energy Road Map for developing greener fuel technologies to cut emission. The hydrogen-blended CNG, called HCNG, will produce minimum Nitrogen Oxide.