The forms below may be printed out and used for requests through eFile Texas. Attorneys should use this Service Request Form as the lead document.Yet another form of this category of interrogatory asks an opponent to state all the evidence on which it bases some specified contention. The interrogatories below are form interrogatories approved for use in civil cases. Any party may serve upon any other party no more than 25 written interrogatories, including all discrete subparts. It helps if you fill in the top part of the form with the case and court information. This Note explains how to draft the case caption, introduction, instructions, definitions, interrogatories, signature block and certificate of service. I. Nature and History of the Litigation.