The five-day fair was jointly inaugurated by Prime Minister Narendra Modi and German Chancellor Angela Merkel.
India was partner country at 'Hannover Messe 2015', the world's largest industrial trade fair.
"India is the destination for the foreign investors. Our 'Make in Maharashtra' initiative is a mission to open up greater opportunities for foreign investors," Fadnavis said.
The Chief Minister led a delegation comprising state Industries Minister Subash Desai and senior bureaucrats.