(b)referred to in sub-section (1-A) of section 192, being an employer, does not deduct, or after so deducting fails to pay, or does not pay, the whole or any part of the tax, as required by or under this Act, and where the assessee has also failed to pay such tax directly, then, such person shall, without prejudice to any other consequences which he may incur, be deemed to be an assessee in default within the meaning of sub-section (1) of section 201, in respect of such tax.]