In one Go , IR can NEVER connect the whole of Jharkhand with South India. Its Impossible to start a train which could cater Tata-Dhanbad-Bokaro-Ranchi in One Go. If a Train from Tata is started , then Only Tata and CKP region will get benefited, whereas if a dedicated Dhanbad to south is started, then Ranchi and Bokaro will also get benefits.
But yes, If a dedicated SF is started , then atleast Tata-Allp Slip coaches should be increased in this train and DHN-Allp coaches should be reduced.