I traveled in this train from KJM to CBE on 27th Dec 2018 in C3 coach. A few observations during the journey. Seats are not at all comfortable for this 6+ hours journey. I would have preferred Sleeper Class Side-Lower seats for this journey.

No vendor comes to sell anything inside the coaches - not even water bottles. Therefore, it is difficult to go to the catering booths / counter in coach C1, C4 and C7, especially if you are seated on a window seat on a 3-seater side and have...
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to ask the other 2 passengers to make way for you.

And for senior citizens, it will be a herculean task. And the catering booths / counters are usually crowded. I had Veg Cutlets (6 on 10 - too oily) and Aloo Samosa (5 on 10 - too chewy and not crispy as a good Samosa should be) and coffee (8 on 10) as per IR catering standards.

The other items available are - (I did not buy them or try them) Sambar Rice, Curd Rice, Lemon Rice, Chapati Curry - this is available from SBC until it gets sold out. Then they offer Veg Cutlets + Samosas + Dal Vada (Masala Vada / Parappu Vada) - packaged drinking water + Coffee + Tea + some packed snacks like Potato Wafers etc. I bought my Samosas + Cutlets + Coffee just before the train reached Kuppam.

What exactly is available after that until CBE - I do not know as I did not find it a pleasure to go again to C4 coach to see what is available.

Though there are charging points - my mobile charger could not be inserted into the plug - so the plugs are not the standard ones. I saw another passenger who desperately tried to plug-in his charger going from one seat to another. Finally, I saw him forcefully insert his charger only to see that his mobile still not getting charged.

And those who wish to charge your Laptops during your journey on this train - better DO NOT BOOK a ticket on this train - your Laptop charger will not find any plug that has a 3 pin socket - all are 2 pin sockets.

And the speed of this train is pathetic - too slow for this route - the timings could have been at least 30 minutes faster. And remember - this train seldom reaches CBE at 21:00 hrs.

Therefore I would't book on this train anytime in my lifetime again.