Hydrogen-propelled locomotive is the next big thing that the Indian Railways has set its eyes on.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/hydrogen-power-railways-plans-sans-diesel-electricity
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/pioneer-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/rail-transport
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/diesel
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/electricity
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/hydrogen-energy
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/cng
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/solar-energy
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/chhattisgarh
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/raipur-d
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/alternative-fuels
[14] http://admin.indiaenvironmentportal.org.in/category/thesaurus/liquefied-natural-gas-lng