hi Arindam,
As pointed out already that there will be only one record per PK. You need to check that if your 65 records have all the PK different, it might happen that some of your records are having exactly same PK (they might include blank for some columns). So please check on your data.
I would suggest you to sort the internal table with your PKs and then DELETE ADJACENT DUPLICATES comparing PKs. Now you check how many entries are left in the table. If they are 7 then your data is faulty. In this case either you need correct data or need correction in your requirement for TABLE. You might want to change the table structure in that case.
Please test for above condition and revert.
Regards,
DN.