Section 142(1) in The Dedicated Freight Corridor Railway General Rules, 2018
(1)The vehicles stencilled or labelled `Not to be loose shunted', or such other vehicles or any vehicle when loaded with certain commodities specified under special instructions shall not be loose shunted or hump-shunted nor shall other vehicles be loose shunted against them. The list of such vehicles and commodities shall be specified from time to time under special instructions.