Prior to halt given @ MBP,
Passengers of 15010 MLN GKP deboarded @ MBP (if unscheduled halt). Agreed. Quite Possible !
Did passengers wait for 15009 GKP MLN Exp @ MBP as well ?
x-----x-----x-----x-----x...
more...
Yes, 12107/08 LTT ⇌ STP SF Express does have a scheduled halt @ MBP.
As, all regular trains of LJN / ASH - BBK route halt @ BNZ along with LJN or ASH.
Similarly, 12107/08 seems to be given halt @ MBP along with ASH.
And, adjoining areas of MBP and nearby Trans Gomti area of Lucknow are indeed served well by MBP.