The Konkan Railway merger with Indian Railways needs approval from four states, Railway Minister Ashwini Vaishnaw said in Mangaluru. The Konkan Railway merger with Indian Railways will need approval from Maharashtra, Goa, Karnataka and Kerala, Ashwini Vaishnaw said. Of the four, three state governments of Kerala, Goa and Karnataka have agreed for the merger of Konkan Railway with Indian Railways and Maharashtra is also willing to give its nod provided the.