S. 12AA : Procedure for registration-Trust or institution-cancellation of registration-New Section brought with effect from 1-4-2022 providing for reference by Assessing Officer to Principal Commissioner or Commissioner proposing withdrawal of registration in case of Specified violation by trust or institution-Amendment is prospective-Law inserted with effect from 1-4-2022 would not apply retrospectively-Cancellation of registration is bad in law and registration is to be restored. [S.2(15), 11, 12AB(4) 13(2(a) 13(2)(g) 13(3)]