With this arrangement , SWR can do away with 16511/16517 and run SBC-KAWR as a dedicated train.
Patronage for 16511/16517 beyond MAQ into Kerala is usually underwhelming and this has also been discussed previously. Passengers south of Kannur hardly take that over 16527 and for the few passengers boarding that train from Kannur and Payyanur this extension is as good as the alternative. Timing wise this is not too big a stretch, and this can reach Kasaragod at 12.00 and depart by 16.00 from there itself.
Those who may prefer going via...
more...

Hassan for the lower distance and fare, they can take a connecting train from MAJN.

16565 is a wonder of IR. Evidence of how bizarrely IR/SWR assesses its passengers.
It continues to operate the underutilized 16511/16517 when there's a crying demand for more coaches for 16513 in Udupi and Karwar pitting the two demographics against each other.
On the other hand it runs the Gomateshwara exp the same way, which can be extended elsewhere given that Mangalore is not able to fill it up. Already slot is available for extension to Karwar/Madgaon. Or, it could be extended all the way south up to Shoranur, which in...
more...

my view, will be better service for Malabar than the 16511/16517 which runs daily cannibalizing the Karwar portion. But it continues to have a sub optimal run, not serving any purpose other than an excuse for hampering new trains in future.
The new tri-weekly between YPR and MAQ, well, nobody needs to explore further on that.

If SR can take over this train and maintain at MAQ, I make this suggestion: Let Kannur YPR run uptoto MAQ. From YPR, it can follow Gomateshwara/ Karwar express. Similarly, morning say by 1030 to 11 it can start from MAQ and reach YPR by 1930 and continue to CAN.
With this, tri weekly Gomateshwara can run upto Karwar or atleast upto Udupi. We get 2 day train between MAQ and SBC. Day time train between Karwar to SBC 6 days
Also, it will link Hassan, Subrahmanya to West Tamilnadu - Hosur,...
more...

Salem, Erode, Coimbatore, etc.
Circuitous route cannot be used to reject the suggestion as SR is already running TVC to Madurai via ERN, PGT; Egmore MS GUV via TPJ, MDU, TVC, and MS Punalur via MDU, TVC. For all the train routes mentioned, there are shorter routes available.
SWR can run YPR MAQ weekly express as YPR CAN via MAJN to get more patronage.
For suggestions/ discussion.