The busiest railway station in India, New Delhi Railway Station, has now launched Wi-Fi service. Passengers can now access Wi-Fi internet on all the 16 platforms.  Users will have to register on the Wi-Fi network through their mobile. The service will be free of cost for the first 30 minutes. After that users will have to buy scratch cards starting from Rs 25 for the next 30 minutes and Rs 35 for an hour&rsquos usage. Wi-Fi users can buy the cards at information desks at Paharganj and Ajmeri Gate sides of the railway station.