ITR Related query

More important is name of proprietor and its PAN. The said field can be filled either as SELF or even as Proprietor, will not make any difference.........

(Note: Only if the form is used for partnership firm, then it will be 'PARTNER')

Form will not be defective/rejected, but for individual assessee it should be SELF or for proprietorship firm, more appropriate word is 'Proprietor'.