AC 3 Tier (3A) coach seat layout
Air-conditioned 3-tier. Same berth pattern as Sleeper, with bedding. The coach holds 72 berths, arranged as 8 berths per bay (6 main + 2 side) x 9 bays.
Which seat numbers are which in AC 3 Tier
8 berths per bay (6 main + 2 side) x 9 bays. The pattern repeats along the coach, so the same position in every bay carries the same berth type.
Bay 1 · 1–8
Bay 2 · 9–16
Bay 3 · 17–24
Bay 4 · 25–32
Bay 5 · 33–40
Bay 6 · 41–48
Bay 7 · 49–56
Bay 8 · 57–64
Bay 9 · 65–72
Each bay seen from the aisle: two facing tiers, then the side berths.
Lower berth (LB), 18 of them
1, 4, 9, 12, 17, 20, 25, 28, 33, 36, 41, 44, 49, 52, 57, 60, 65, 68
Middle berth (MB), 18 of them
2, 5, 10, 13, 18, 21, 26, 29, 34, 37, 42, 45, 50, 53, 58, 61, 66, 69
Upper berth (UB), 18 of them
3, 6, 11, 14, 19, 22, 27, 30, 35, 38, 43, 46, 51, 54, 59, 62, 67, 70
Side lower (SL), 9 of them
7, 15, 23, 31, 39, 47, 55, 63, 71
Side upper (SU), 9 of them
8, 16, 24, 32, 40, 48, 56, 64, 72
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