Interrogatories are a discovery tool (among many) used in lawsuits in New York courts. In sum, these are written questions seeking specific information.1. Except as otherwise provided herein, after commencement of an action, any party may serve upon any other party written interrogatories. State your residence addresses for the past five years up to the present time, indicating periods of residence at each address. Section R3132 - Service of interrogatories. After commencement of an action, any party may serve written interrogatories upon any other party. In many civil actions, before the case is resolved there takes place a process known as pretrial discovery. This summary describes the process. Any party may serve written interrogatories on any other party. Interrogatories are limited to 25 in number, including subparts, unless another limit is specified in the preliminary conference order.