1. Except as otherwise provided herein, after commencement of an action, any party may serve upon any other party written interrogatories. In many civil actions, before the case is resolved there takes place a process known as pretrial discovery.This summary describes the process. Section R3132 - Service of interrogatories. After commencement of an action, any party may serve written interrogatories upon any other party. In New York City for Housing Court cases, papers should be served between in the morning and at night. Substituted delivery. Under NY CPLR § 3130, to formally object to an interrogatory, you provide a written response specifying the grounds for your objection. Contains Fields to Complete on-line (print out for filing) A form for pro se litigants (Rev. A. CPLR 3101(a)(1): Disclosure from a Party .