Hello dear..

Yes

GNDCD =Delhi defence
GNDCO = Outside delhi defence
GNGND = Delhi general
GNGNO = Outside delhi general
GNGNA = All india general
OBGND =Delhi OBC
SCGND = Delhi SC
SCGNO = Outside delhi SC
STGND = Delhi ST
STGNO = Outside Delhi ST
GNGNA = General All (for admission in NCR colleges affiliated to GGSIPU university)

Best of luck..