Davos [Switzerland], January 18 (ANI): Union Minister for petroleum and natural gas, and housing and urban affairs Hardeep Singh Puri has said that India has a cost advantage in production of green energy and electrolysers."In the Indian energy story, the thing that stands out is that in the next 20 years, 25% of the increase in global demand is going to come from India," said Puri at the CII-Bain session on 'Green Hydrog