​The documents required to be submitted with the PAN application are specified in Rule 114 of the Income-tax Rules. The details of the documents required are also provided in the application form. Individual applicants have to provide document pertaining to proof of identity, proof of address and proof of date of birth. The name of the applicant as mentioned in application form and the name appearing in the documents submitted along with the application should match exactly.

Individual applicants should affix two recent colour photographs with white background (size 3.5 cm x 2.5 cm) in the space provided on the form. The photographs should not be stapled or clipped to the form. The clarity of image on PAN card will depend on the quality and clarity of photograph affixed on the form.

Source: Income Tax India’s Official Website