Undertaking requirement under rule 11UE establishes a prescribed form for compliance with Income-tax Rules and submission procedure. Form No. 1 prescribes an undertaking for compliance with sub-rule (1) of rule 11UE of the Income-tax Rules, 1962, included within Appendix IV which consolidates Forms No. 1-4 and follows a regulatory insertion by the cited notification, thereby formalizing the documentation and submission mechanism for the rule 11UE undertaking.