Types of LHB coaches with capacity
LGS = Second class self-generating
LS = Second class non self-generating [Overcrowding capacity 145]
LS2 = Second class non self-generating [Overcrowding capacity 200]
LS3 = Second class non...
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self-generating [Overcrowding capacity 225]
LS4 = Second class non self-generating [Overcrowding capacity 260]
LS5 = Second class non self-generating [Overcrowding capacity 300]
All LS coaches have 100 passenger capacity
LSCN = Second class 3-tier sleeper[28]
LWACCW = AC2 Air-conditioned 2-tier sleeping-car (52 berths)
LWACCN = AC3 Air-conditioned 3-tier sleeping-car (72 berths)
LWCBAC = Air-conditioned pantry/kitchen/buffet car
LWFAC = AC1 Air-conditioned first class sleeping-car (24 berths)
LWFCWAC = Composite coach with air-conditioned AC1 sleeping-compartments and AC2 2-tier sleeping-compartments[29]
LWFCZAC = Air-conditioned executive chair car (56 seats)
LWLRRM = Luggage/generator/brake van
LWSCN = 3-tier Sleeper for [80 seats\berths]
LWSCZAC = Air-conditioned chair car (78 seats)
LWSCZ = Chair car [106 seats]

Original blog: /blog/post/3255060

LGS = Second class self-generating
LSCN = Second class 3-tier sleeper
LWACCW = AC2 Air-conditioned 2-tier sleeping-car (52 berths)
LWACCN = AC3 Air-conditioned 3-tier sleeping-car (73 berths)
LWCBAC = Air-conditioned pantry/kitchen/buffet car
LWFAC...
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= AC1 Air-conditioned first class sleeping-car
LWFCZAC = Air-conditioned executive chair car
LWLRRM = Luggage/generator/brake van
LWSCZAC = Air-conditioned chair car (78 seats)
LWSCZ = Chair car