Amounts not deductible in certain circumstances
(b)
(i)
30% of any sum payable to a resident on which tax is deductible at source under Chapter XIX-B and during the tax year, such tax has not been deducted or after deduction, has not been paid up to the due date specified in section 263(1), where— (A) tax is deducted and paid during any subsequent tax year, deduction of such sum shall be allowed as a deduction in computing the income in any subsequent tax year, in which such tax has been paid;
(B)
the assessee is required to and fails to deduct whole or any part of the tax under Chapter XIX-B but he is not deemed to be an assessee in default under section 398(2), then for the purposes of this sub-clause, the assessee shall be deemed to have deducted and paid the tax on such sum on the date on which the return has been filed by the payee referred to in (2);