Is affidavit necessary in appeal u/s 29 pwadv act

Husband filed appeal u/s 29 PWADV  Act against interim maintenance order passed u/s 23 PWADV Act.He submitted an affidavit along with it in which he has only mentioned that this is first appeal but has not given affidavit in support of the points mentioned in his appeal.Is this appeal maintainable without an affidavit in support of the points he has raised in this appeal?

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