Hello Praveen,
Good News, Finally I am able to show a fm-free solution to your query.
The Table you need is KSSK_INOB (view).
See the picture below (SE11)
Image may be NSFW.
Clik here to view.
I passed the Equipment number to the field INOB_OBJEK field of this Table. (You should fill OBTAB field also with value 'EQUI' to avoid getting matching lines related to other Tables if any). See what we got.
Image may be NSFW.
Clik here to view.
I got the OBJEK number which we needed to pass to AUSP table. I think the Mission has been accomplished .
So the join is
EQUI-EQUNR <--------------> KSSK_INOB-INOB_OBJEK
KSSK_INOB-OBJEK <-----------------> AUSP-OBJEK
Regards
KJogeswaraRao