IMHO, Minimum 6-8 SL coaches should be there in Seshadri/BVC/SNSI/Gowthami even after SL reduction & increase in ACs. These are trains which are used by middle class/lower middle class people for TPTY/SBC/ADI/BRC/ST/SNSI. People who can afford already use better means such as Own Vehicles/Flights/AC Sleeper buses or already in AC class.