(2)For the purpose of this section,—(a)"tax return preparer" means any individual, not being a person referred to in section 515(3)(a)(ii) or an employee of the "specified class or classes of persons", who has been authorised to act as a tax return preparer under the Scheme made under this section;(b)"specified class or classes of persons" means any person, other than a company or a person, whose accounts are required to be audited under section 63 or under any other law, who is required to furnish a return of income under this Act.