Production of backdated completion certificate won't allow sec. 80-IB deduction

IT: Where completion certificate of housing project of assessee was issued after cut off date by Local Authority but mentioned date of completion of project before cut off date, same could not fulfil condition specified in section 80-IB (10)(a) read with explanation (ii) thereunder and assessee was not entitled to deduction under section 80-IB (10)(a)