(1)Where any person, including the principal officer of a company,—(a)who is required to deduct any sum in accordance with the provisions of this Act; or(b)referred to in sub-section (1A) of section 192, being an employer,does not deduct, or does not pay, or after so deducting fails to pay, the whole or any part of the tax, as required by or under this Act, then, such person, shall, without prejudice to any other consequences which he may incur, be deemed to be an assessee in default in respect of such tax:Provided that any person, including the principal officer of a company, who fails to deduct the whole or any part of the tax in accordance with the provisions of this Chapter on the sum paid to a payee or on the sum credited to the account of a payee shall not be deemed to be an assessee in default in respect of such tax if such payee—(i)has furnished his return of income under section 139;(ii)has taken into account such sum for computing income in such return of income; and(iii)has paid the tax due on the income declared by him in such return of income,and the person furnishes a certificate to this effect from an accountant in such form as may be prescribed:Provided further that no penalty shall be charged under section 221 from such person, unless the Assessing Officer is satisfied that such person, without good and sufficient reasons, has failed to deduct and pay such tax.