The reason why KTYM line didn't change is that it's too small to make a big difference. Even when VM CGL got more trains, travel time didn't really change. The main issues causing delays for KL trains are crowded platforms and infrastructure problems. On the other hand, VM, TPJ, MDU, and TEN have plenty of platforms to manage trains. TCR, ERN, QLN, and TVC can't compare to major Tamil Nadu stations in terms of platforms. Ananthapuri now arrives in Chennai at 6 am, so the gap between it and CAPE MS may grow in the future. If that happens, the issue of Island CAPE MS won't be a big deal. There are train services like Pandiyan Cholan Rockfort, Mannai Chendoor, MS SA MS CSMT mail that are managed well, this one might turn out well too. If MS CAPE is managed in NCJ, it could share services with other trains too. I think we could make the TBM NCJ Tri-weekly service daily with the MS CAPE agreement, and we could potentially have an additional TBM SCT SF/Silambu shared service with more carriages. It's tricky to find a slot for maintenance in Egmore, but if Tambaram takes on all these trains or if there's an agreement with Kamban or Mannai or MS SA or MS MAQ, it's technically possible to share maintenance tasks.

Pearlcity and Kanyakumari sharing the train route now. Maintenance shifted to SBC.