# Corporate Identity Number (CIN)
## What is CIN?
On and from the date mentioned in the Certificate of Incorporation, the Registrar of Companies (ROC) shall allot to the company a Corporate Identity Number (CIN).
- It is a distinct identity for the company.
- It is also included in the Certificate of Incorporation.
## Structure of CIN
CIN is a 21 alpha-numeric digit unique identification number, divided into data sections that reveal basic aspects of a company.
### Breakdown of the 21 characters
| Position | Characters | Meaning |
|---|---|---|
| 1st character | 1 letter | Listing status — `L` for Listed, `U` for Unlisted |
| Next 5 digits | 5 digits | Industry code |
| Next 2 letters | 2 letters | State of registration (e.g., KA for Karnataka) |
| Next 4 digits | 4 digits | Year of incorporation |
| Next 3 letters | 3 letters | Company classification — PLC (Public), PTC (Private), FTC (Foreign), GOI (Government) |
| Last 6 digits | 6 digits | Registration number with concerned ROC |
## Maintenance of Documents
The company shall maintain and preserve copies of all documents and information as originally filed at its registered office, till its dissolution under the Act.