(i)in a case where the assessment to which the proceedings for imposition of penalty relate is the subject-matter of an appeal to the Joint Commissioner (Appeals) or the Commissioner (Appeals) under section 23 or an appeal to the Appellate Tribunal under sub-section (2) of section 24, after the expiry of the financial year in which the proceedings, in the course of which action for the imposition of penalty has been initiated are completed, or six months from the end of the month in which the order of the Joint Commissioner (Appeals) or the Commissioner (Appeals) or, as the case may be, the Appellate Tribunal is received by the Chief Commissioner or Commissioner, whichever is later;