# Authentication of Documents (Section 21) + Key Definitions
## Authentication Rule (Section 21)
Any document, proceeding, or contract on behalf of the company may be signed by:
- A Key Managerial Personnel (KMP), OR
- An officer or employee authorized by the Board
For IFSC public/private companies: The term 'officer' is widened to include 'officer or any other person'.
## Definition of KMP [Section 2(51)]
KMP includes:
1. CEO, MD, or Manager
2. Company Secretary
3. Whole-Time Director (WTD)
4. CFO
5. Officers one level below directors in whole-time employment and designated by the Board as KMP
6. Any other officer prescribed
### Quick Notes on Key Roles
| Role | Brief |
|---|---|
| CEO | Officer designated by the company as Chief Executive Officer |
| CFO | Officer appointed as Chief Financial Officer u/s 2(51) and Section 203 |
| Manager | Individual managing substantially all affairs under Board supervision |
## Definition of Managing Director
- A director entrusted with substantial management powers by AOA, agreement, or Board resolution
- Excluded from substantial powers: routine administrative powers like affixing seal, endorsing cheques
- Only a director can become an MD — non-directors cannot be MD
## Definition of Officer
Includes:
1. Director, Manager, KMP
2. Any person on whose instructions the Board or directors habitually act (but NOT a person acting in professional capacity, e.g., lawyer/auditor)
## Officer in Default — Who Is Liable?
'Officer in default' = person liable for penalties/imprisonment/fines under the Act. Includes:
| Category | Description |
|---|---|
| (a) | WTD, KMP, Director(s) specified by the Board |
| (b) | Persons responsible for accounts/records |
| (c) | Persons advising the Board (non-professional capacity) |
| (d) | Directors aware of or consenting to contraventions |
| (e) | Share transfer agents, registrars, merchant bankers (for share issues/transfers) |
## Authority Map
```
Document needing authentication
↓
Signed by KMP OR Board-authorized officer/employee
↓
Legally binding on company
```