CSTM has also restriction for only few PFs with 24 coach capacity...Our own admin S.V.Iyer wrote to RB via PG for the same to run new train between Mumbai & Chennai or atleast augment the present ones.
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Reply was DR & CSTM have these Maintainence and space constraints and the route is now congested for new daily train..But just as a reprieve this weekly has been announced in the Supplementary budget.