Travelled in this train in both directions from SBC-SA in 2S class, D1-D4 coaches have the pushback type seating and it felt very cramped in terms of width for me though the leg room was pretty good (me being 6.2 Ft tall guy), the D5 coach has the normal sitting coach facing each other which was much more comfortable and spacious, it had 2 charging points per bay in both the types of coaches, washrooms and toilets are decent condition OBHS were present on board and coach cleanliness was good, there were WL passengers near the doors but they didn't disturb the other passengers, there was on board catering present would strongly recommend not to purchase any kind of hot/cooked items like samosa, aloo bonda, as the vendors were not maintaining any hygiene while handling the food, tea/coffee was basically sugar water, they also do sell some packed snacks like...
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chips, biscuits which can be purchased from them, punctuality is good actually was running before time when I travelled and reached on time most of the stations maintaining MPS of 110kmph constantly (unlike the SBC-DPJ-SA 80kmph MPS), overall a good option for 2S travel, and pricing is quite reasonable it's around ₹15 more than Ernakulam intercity fare, which is OK as this takes the longer Kuppam, Bangarapete route

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.