KRR-DG is electrified now, so is ED-KRR-TPJ. Only missing link is SA-KRR. If this opens up as all electric, there can be seamless connectivity to South TN from SA. Trains could be operated from South TN to MAS/MS/TBM via SA, JTJ. Since VM line is crowded already and DG-SA-MAS takes the same time as Mainline (DG-TPJ-MV-VM-SA), this line could be used.