For AC 3 Tier Humsafar is already there.
Five AC 2 and Two AC First are meant for VIP Movement.
Even Bhubaneswar Rajdhani doesn't have that much AC 2 or AC First Coaches.
Abhi toh Patna Rajdhani bhi khaali milegi, see it during normal times. You won't be able to find seats easily, how do you think Rewa ANVT Express got that many AC...
more... Coaches ? It was simply because that train is a backup for Prayagraj Express.
This coach composition coupled with Daily Humsafar is perfect for Prayagraj City.