Section 155(4)(a) in The Dedicated Freight Corridor Railway General Rules, 2018
(a)on receipt of information for imposition of special precautions, the Station Master on duty receiving such information shall immediately inform the Station Master on duty at the other end of the affected block section, and both of them shall stop the very next train to issue caution order. They shall continue to issue caution order to all subsequent trains until confirmed by the Controller that caution order to the Loco pilots of the trains thereafter have been issued by the notice station; and