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.

Monday evening, we'll be in Chennai and then heading to Kanyakumari. On Tuesday, we're going from Kanyakumari to Bengaluru. Then on Wednesday, we'll be back in Kanyakumari. On Thursday, we're making our way from Kanyakumari to Chennai. And on Friday evening in Chennai, we'll need 4 rakes. If it's connected with Pearl City, then the cycle will start from Tuticorin with PM and SBC as SM with 6 rakes. Currently, it's being maintained in Tuticorin.

Monday Evening Chennai Kanyakumari
Tuesday Kanyakumari to Benguluru
We'd Benguluru to Kanyakumari
Thrusday Kanyakumari to Chennai
Friday PM at Chennai 4 rakes required.
If it has RSA with pearl city then then cycle start from Tuticorin with PM and SBC as SM with 6 rakes. At present maintained at Tuticorin. मंडे इवनिंग चेन्नई कन्याकुमारी
ट्यूजडे कन्याकुमारी टू बेंगलुरु
वीड बेंगलुरु टू कन्याकुमारी
थ्रुदे कन्याकुमारी टू चेन्नई
फ्राइडे पीएम अट चेन्नई 4 रेक्स रिक्वायर्ड।
इफ इट हस आरएसए विथ पर्ल सिटी थेन थेन साइकल स्टार्ट फ्रोम टूटिकोरिन विथ पीएम एंड एसबीसी अस एसएम विथ 6 रेक्स। अट प्रेसेंट मेंटेंड अट टूटिकोरिन।

You can do SM anywhere at SBC or CAPE. Looks like these 3 RSA are possible.

The arrangement is not good at all, it's a mess. The Island Exp rake at CAPE could be used for a new overnight service now that MDU-NCJ is not working anymore. There's also a smarter option to use Island's rake for operating 17235/6, which would free up Seshadri's rake at SMVB to run a different service. If SR wants to take over Island and bring back the not-so-popular RSA with 12633/4, they should do it and relieve Pearl City (they can make up for it by introducing a new train or increasing the frequency of one of the trains from MS) as well as spare Bangalore CDO from secondary maintenance duties.