Thanks Amlan for your interest in my solving my issue.
I checked in DFKKOP, there is only one record in DFKKOP when I passed interest document number in DFKKOP-OPBEL which is a non zero item with clearing status not equal to 9. Also, when I passed interest document number in DFKKOP-AUGBL, I get more than one records which are cleared.
Please find attached screenshots.
Thanks
Viraj.