The New York Application for Index Number (.pdf) is a form used by individuals filing a lawsuit in the New York Supreme Court. It is a formal request for the court to assign an index number to the lawsuit, which is used to identify the case. The form must be completed and submitted in person with the appropriate filing fee. There are two types of New York Application for Index Number (.pdf): one for a Civil Lawsuit and one for a Commercial Lawsuit. The Civil Lawsuit form is used for filing a lawsuit against an individual or entity for a dispute arising out of a private legal matter, such as a contract dispute or personal injury. The Commercial Lawsuit form is used for filing a lawsuit involving a business or commercial transaction or dispute. The New York Application for Index Number (.pdf) must include the name of the court, the name of the plaintiff (person filing the lawsuit) and defendant (person being sued), a brief description of the claim, and the address of the plaintiff. The form also includes instructions for submitting the filing fee and filing the application.