Explanation:

- Section 463: This section of the Indian Penal Code (IPC) defines the term "forgery." It provides the basic legal framework for what constitutes the making of false documents or electronic records with intent to cause damage or injury.

- Section 464: Describes the conditions and manner that classify making a false document as forgery. It explains how a document is considered forged, laying out different scenarios.

- Section 465: Prescribes the punishment for the act of forgery. It outlines the penalties associated with committing forgery, specifying fines and imprisonment durations.

- Section 467: Deals with aggravated forms of forgery, like documents related to property or valuable security, providing harsher punishments.

Answer: Section 463 (Option: 2) is the section where forgery is defined.