for non-ac pax the first option comes is Karnavati!
and overnight journey: Gujarat Mail.
for AC pax the first option in the morning is DD
and overnight journey: Duronto.
.
But...
more... in BCT-ADI stretch! I'd seen AC pax prefers Karnavati instead of DD.
Karnavati is LHB and its seats are much more comfortable than DD.
In ADI-BCT stretch, DD is preferred because of Karnavati's early morning timing. If Karnavati will depart 7AM then DD will not do well!