The new minister in charge of railways will have to hit the track chugging. Prime Minister Narendra Modi is expected to keep an eye on the Mumbai-Ahmedabad High Speed Corridor and the Dedicated Freight Corridor (DFC) for fast, efficient implementation.The success of both projects is crucial to enhance growth as well as Modi's image as an able administrator. "The BJP's manifesto laid stress on the bullet train and speedy implementation of the DFC. We understand he would want faster results on these projects," said a senior railway official.