Application for PAN cannot be made on plain paper. The application for PAN is to be made in the prescribed form i.e. Form No. 49A/ Form No. 49AA as the case may be. Form No. 49A is to be used by Indian Citizen/ Indian Companies/ Entities incorporated in India/Unincorporated entities formed in India and Form No. 49AA is to be used by individual not being a citizen of India/ Entities incorporated outside India/ Unincorporated entities formed outside India).
In case of an applicant, being a company which has not been registered under the Companies Act, 2013, the application for allotment of a Permanent Account Number is to be made in SPICE-INC-32 specified under sub-section (1) of section 7 of the said Act for incorporation of the company.
Source: Income Tax India’s Official Website