Hi Admins,
Please update the following info.
Train No.12251/12252 Yesvantpur – Korba – Yesvantpur Bi-Weekly Express is augmented with 2 Three Tier AC Coaches with effect from 07.07.2015 from Yesvantpur and from 09.07.2015 from Korba on permanent basis..
Source: SWR Official Page in FACEBOOK.