# Section 21 – Authentication of Documents, Proceedings and Contracts
## What is the section about?
A company, being a juristic (artificial) person, cannot itself sign. It acts through human beings. Section 21 specifies who can authenticate the company's documents/contracts so that they are binding.
## The Rule
> Save as otherwise provided in this Act,
>
> (a) a document or proceeding requiring authentication by a company; or
>
> (b) contracts made by or on behalf of a company,
>
> may be signed by:
> - any Key Managerial Personnel (KMP), OR
> - any officer or employee of the company duly authorised by the Board.
## Three Important Take-Aways
1. "Save as otherwise provided" – if another section of the Act prescribes a specific mode (e.g., signing of financial statements u/s 134), that overrides Section 21.
2. KMP need not be specifically authorised by the Board – their position itself gives them authority.
3. An ordinary officer/employee requires specific Board authorisation (typically by a Board resolution) to sign on behalf of the company.
## Who is a KMP?
Under Section 2(51), KMP includes: Managing Director, Whole-time Director, Manager, CEO, CFO, Company Secretary, and such other officer as may be prescribed.