दौड़ती है हिमालय तट से सागर, हमसफ़र हर राह पर, हवाई जहाज़ों को त्याग कर, करो अक्सर, भारतीय रेल में सफर. - Arpit P

From source:
The new things in this Rake: -
SLB Is now Slidable i.e you need to pull the Plan from side wall to Up and Keep it on the Two Different SLB when you need to sleep. Now no more Pulling that heavy seat up and placing it as BackRest.
6 USB Ports and 2 3 pin Plug point in each...
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bay.
Toilet Walls are anti-graffiti (nice Move)
Charging Socket is now Moile Friendly. They won't heat up now.
Separate Urinals For Men inside Toilet.

more Info about SLB:
Gupta said one of the “hardest design challenges” was re-doing the side-lower berths to make them more comfortable. Currently, the backrests of the two seats facing each other have to be lowered to convert it into a berth. But more often than not, the alignment of the two backrests don’t match, making the berth uncomfortable. In the new coach, this problem has been solved by placing a thin, cushioned plank alongside the side-lower seats. After lowering the backrests, the passenger will have to slide the plank up to place it on top of the joined backrests for it to become a flat berth.
The...
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manufacturing cost of each coach is Rs 2.7 crore, about Rs 20 lakh more than an ordinary AC 3-tier coach. With the all-AC-3-tier Humsafar Express’s fare about 15 per cent higher than Rajdhani fares, Indian Railways wants to create a new class of travel. “For AC 3-tier, this is going to be the new normal in Indian Railways,” said Gupta.
While four rakes of Humsafar Express have already been rolled out without the modifications, Gupta said the “fifth rake will carry the real change this project is meant to showcase.”