(iv)The summons shall require each respondent to file written statement in answer to the petition. The written statement shall be either printed or typewritten neatly and legibly with sufficient space between lines on strong and durable foolscap size paper or other paper similar to it in size and quality duly paged and indexed together with typed copies of such documents as the respondent desires to rely upon and if such documents are in Gujarati, together with typed copies of translation of such documents in English and shall be filed within 21 days of the date of service of summons upon him or within such further time as the court may allow.