S. 147 : Reassessment-Search and seizure-Search assessment was required to be made under section 153A or 153C-Reassessment was quashed-Reassessment without communication of reasons recorded when request was made-Reassessment is bad in law-Delay of 492 days in filing of appeal due to mistake of accountant was condoned. [S. 132(4), 148, 153A, 153C, 254(1)]