Nahi, Koi alag se nahi bante GR ke coaches, it's only slightly modified rusting decommissioned ICF coaches of pre 2000-2005 Rajdhanis.
side berths were added in many trains including Garib Rath during Lalu as RM as he was of opinion that poor people will like adding more seats even on a little bit inconvenience.
But all over India, this move was unwelcomed by pax
So...
more... it was removed from many trains but present still in many trains.
Bandra Nizamuddin Garib Rath is also one of them.