Interrogatories are a discovery tool (among many) used in lawsuits in New York courts. In sum, these are written questions seeking specific information.As the others have said, you do not file them with the court. In many civil actions, before the case is resolved there takes place a process known as pretrial discovery. This summary describes the process. A party shall not serve upon any other party more than forty (40) interrogatories, which may be any combination of uniform or non-uniform interrogatories. Consider service of a Notice to Admit (C. , to the conference on "Energy Up-Date and Outlook" New York Nov. Tyler strives to help people navigate through litigation. New York, NY 19917. 14.