AO initiated reassessment proceedings on ground that there was change of accounting method in respect of Non-Performing Assets (‘NPAs’)-Tribunal found that assessee had made full and true disclosure of all material facts regarding change in method of accounting at time of assessment.  Tribunal thus taking a view that precondition stipulated in first proviso to section 147 was not satisfied, set aside reassessment proceedings.  High Court upheld order passed by Tribunal. (AY. 2006-07)