G3 and G13 Has SMB (81 Seats Per Coach) And G2 Duronto Livery has 78 Berths (With SMB) Rest all Coaches are Having 75 Berths (No SMB)
To Be Precise 2 Coach With 81 Berth, 1 Coach With 78 berth and rest 12 Coach With 75Berth
So...
more... In Some Coach It Is Side-Upper And In Rest It Lower Berth