Developer's DescriptionBy Metro Railway, KolkataThis Official Mobile App has been developed to facilitate online recharge of Smart Cards and provide useful information regarding Metro services,.This Official Mobile App has been developed to facilitate online recharge of Smart Cards and provide useful information regarding Metro services, fare structure and other useful information to the users. This Mobile app is completely developed & designed by Metro Railway, Kolkata itself. Metro Railway, Kolkata is the 17th Zone of Indian Railways under Ministry of Railways, Govt. of India.