Garib k liye T18 is actually not possible according to me, the reasons being that -
1. Addition of GS in preExisting 22435/6 to make it 22 coacher, will require more loco power to pull and slow down the whole train set, so the avg. speed will be decreased.
2. Even if a new T18 set is run with ONLY GS coaches for garib, and assuming the whole trainset to be 16 coacher, I think still there will be problems. In India, People catch train irrespective of the Coach load capacity. For...
more... this train, if CLC exceeds the maximum limit, then again more loco power is required to accelarate & slow down the train. And for gareebs, it is more likely that CLC will exceed the limit in case such type of train runs.
Same is the case for Bihar bound trains. More rush, more complications.
3. High probability of Alarm Chain Pulling en-route. This will directly effect the running TT of this train.