S. 147 : Reassessment-Residential status-Fictitious loss-Reassessment notice on the assumption as resident-Reopening Based on receipt of information of escapement of income-Assuming as non-resident-Proceedings in status of Non-resident is bad in law-In Income-tax matters, the law to be applied is the law in force for the relevant assessment year unless otherwise stated or implied. [S. 133A, 143(3) 144C(15(b)(ii) 148]