# Section 20 — Service of Documents
Documents may be served on the following persons, by the modes listed — even if the AOA states otherwise.
## Service on Company or Officer (at Registered Office)
Permitted modes:
- Registered Post or Speed Post
- Courier service which provides proof of delivery
- Leaving at the registered office
- Electronic means (fax, email, etc.) or other prescribed mode
## Service on ROC or Member (at office or address)
Permitted modes:
- Post, Registered Post or Speed Post
- Courier service which provides proof of delivery
- Delivering at the office or address
- Electronic means (fax, email, etc.) or other prescribed mode
## Member's Right to Choose Mode
A member may request delivery through a particular mode by paying such fees as determined in the AGM.
## Special Rule — Nidhi Company
- Documents are served only on members who hold shares of face value exceeding ₹1,000 OR more than 1% of paid-up share capital (whichever is lower).
- For other members: Service is effected by publishing notice in a newspaper circulated in the district where the registered office of the Nidhi is situated, AND publishing on the notice board of the Nidhi.
## Key Takeaway
These provisions ensure that any notice/document is deemed validly served if it follows one of the permitted modes — regardless of contrary AOA provisions.