Actually Trains run much better in Ndls-Cnb than Cnb-Mgs due to Flat section and automatic signalling and no cross cut movements like Ald, Nyn and Coi.
Agar Bsk via Ald,Mgs hoti to uski bhi bakiyon jaisi halat hoti. Otherwise SK has the highest priority among SFs from Bihar, Bsk gets thrashed by SK as well as Purushottam whenever it is ahead