yes tthis train and sambalpur varanasi express, both are the extension of Ranchi varanasi express via GHD. thats y both the trains has to touch varanasi any way. At the outset, this train was running as Ranchi GHD intercity express but later on it was converted to Ranchi BSB express and then it was extended to Ajmer (Once in a week) and sambalpur (once in aweek)
BJ