I don't understand why these trains have to run via the main routes,When there are alternate paths available.This could run uptill Salem the go via DG-MADURAI-SCT-PUU-QLN-KTYM.Thereby benefiting 2 state pilgrims (TN and KA) and thereby reduce congestion on the Trivandrum Mainline.(I am not sure of the traffic on the Salem Madurai Line).Any suggestions?