The Rail Budget, announced by Railway Minister Suresh Prabhu on Thursday has left Mumbai's environmentalists with some room for argument against the proposed Metro III.

In his budget, Prabhu announced the construction of an elevated corridor expected to run from Churchgate to Virar. This, transport experts and environmentalists feel, negates the need for the Metro III line, also expected to ply along a similar route, which in turn ensures that there is no move to construct a Metro III car shed at Aarey Milk Colony as had been proposed.