Probably, you are asking in terms of patronage, we don't have such accurate data but we, the members of IRI, guess on the basis of patronage of the other trains. I feel if there is a JHS-LKO DD, it would get moderate patronage and wont become hit.
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If in terms of feasibility (safety and other constraints), before DD would run, Chief Railway commissioner of railway would inspect the route and present its report then only it would be decided.