16. The provisions of Rules 4 and 5 of Order 22 are mandatory. When a respondent in an appeal dies, the Court cannot simply say that it will hear all rival claimants to the estate of the deceased respondent and proceed to dispose of the appeal. Nor can it implead all persons claiming to be legal representatives, as parties to the appeal without deciding who will represent the estate of the deceased, and proceed to hear the appeal on merits. The court cannot also postpone the decision as to who is the legal representative of the deceased respondent, for being decided along with the appeal on merits. The Code clearly provides that where a question arises as to whether any person is or is not the legal representative of a deceased respondent, such question shall be determined by the court. The Code also provides that where one of the respondents dies and the right to sue does not survive against the surviving respondents, the court shall, on an application made in that behalf, cause the legal representatives of the deceased respondent to be made parties, and then proceed with the case. Though Rule 5 does not specifically provide that determination of legal representative should precede the hearing of the appeal on merits, Rule 4 read with Rule 11 make it clear that the appeal can be heard only after the legal representatives are brought on record.