Section 229(4) in The Dedicated Freight Corridor Railway General Rules, 2018
(4)While proceeding into the obstructed section, the speed of the train in the last five kilometers of stretch immediately preceding the obstruction shall be restricted to twenty five kilo meter per hour in clear visibility over the straight, otherwise to ten kilo meter per hour when approaching or passing any portion of the line when the view ahead is not clear, or obstructed, or during bad weather impairing visibility. A Caution Order to this effect shall be issued to the Loco pilot of the relief train.