Learn More About Requesting and Responding to Interrogatories During the Discovery Process in Texas. A Practice Note discussing how to draft and serve interrogatories in a civil case in Texas district or county court.This Note explains how to draft the case caption, introduction, instructions, definitions, interrogatories, signature block and certificate of service. Fill in all information in this section and sign before sending to the claimant. The certificate of service may be signed electronically. Interrogatories are a list of questions from one Party to the other. Interrogatories are a list of questions from one Party to the other. Any ground not stated in a timely objection is waived unless the court, for good cause, excuses the failure. You might want to consider it here. It would be the way out.