Itna long aur slow route hai Katihar se koi prefer nahi karta.. NFR ka HS rake is being used for the betterment of ECR stations :P
HS ka high speed rake sirf CNB-DLI ke beech useful hai, So better that NFR should deploy a normal LHB rake for Champaran HS and use this Humsafar rake for a faster connectivity from NJP/GHY to NDLS..
Katihar psgrs will be more than happy with this arrangement :)