<P> In early 2015, the authorities decided to discontinue CVMs w.e.f April 1, 2015 . This decision was taken due to extensive duplication of the coupons, and the lack of transparency . The coupons were also lacking a way to trace them . </P> <P> There are also Smart Cards available that can be topped up (recharged with some amount) and one can use it to print tickets for themselves from an Automatic Ticket Vending Machine (ATVMs). A Season Ticket can be purchased if one is commuting regularly . One can choose the validity of these tickets from 1 - month, 3 months to a year . Season Tickets are the most cost effective and time efficient option for regular commuters . </P> <Dl> <Dt> Mobile app </Dt> </Dl> <P> The ticket counters usually have long queues . In order to bring a solution to this problem, the UTSOnMobile app was launched by railways minister Suresh Prabhu at Dadar railway station in December 2014 . This app was launched initially for Android and Windows Phone, with the iOS version still under development . </P>

The first ac sub urban train is plying in which state