Section 155(6) in The Dedicated Freight Corridor Railway General Rules, 2018
(6)Duty of the Station Master of notice station regarding issue of Caution Order, - On receipt of advice for issue of Caution Order, the Station Master of the notice station shall acknowledge the same and not allow any train which has to pass through the affected block section, to leave his station, from that point onwards, unless he has issued a Caution Order. He shall also give particulars of the first train to which the Caution Order has been issued to the Station Master on duty of the station in rear of site of restriction. In case of there being no caution, the notice station shall still issue a caution order depicting `NIL `in Form 9.
