The assessment was completed under section 143(3) allowing the deduction under section 10B of the Act on the basis of approval granted approval by Development Commissioner. The reassessment notice was issued on the ground that ratification certificate was not yet given by the Board. On writ the single judge dismissed the petition. On appeal the division bench held that since approval granted by Authority, to whom power had been delegated was valid, as long as said approval was not withdrawn, assessee would be entitled to rely upon approval and claim deduction under section 10B of the Act.  (AY. 2006-07)