Section 131 in The Dedicated Freight Corridor Railway General Rules, 2018
131. Block back or Block forward.
(1)Whenever it is necessary to provide block protection prescribed by these rules or is dictated by itself in the interest of safety of trains and men, Station Master on duty shall block back or block forward the block section under exchange of private number message after confirming from the Station Master at other end that the block section is clear of all trains after tallying the train number of the last train.(2)All dispatch signals have been put back to 'ON'.(3)An entry to this effect shall also be made in the Train signal register.(4)In addition to switching 'ON' of the buzzer alarm where provided, prescribed collars shall be put on the buttons operating the dispatch signals.
