Sending a legal notice — whether it is a demand notice to a defaulting tenant, a recovery notice to a debtor, a deficiency of service notice to a company, or a legal communication under any statute — through India Post is the recognised standard method of formal service under Indian law. Courts across India accept proof of dispatch via Registered Post as valid service of notice, even if the recipient refuses to accept or is absent.

This guide explains which India Post service to use for legal notices, how to prepare the notice, what proof to retain, and what happens legally when a notice is sent by post.

Which India Post Service Should You Use for Legal Notices?

Registered Post with Acknowledgment Due (AD) — Recommended

Registered Post with AD is the gold standard for sending legal notices. Here is why:

  • The article gets a unique registration number — proof of dispatch
  • Signature of the recipient (or household member / authorised agent) is taken on delivery
  • The AD (Acknowledgment Due) card — a green card attached to the envelope — is signed by the recipient and physically returned to the sender by post
  • The signed AD card in your possession is direct documentary proof that the notice was delivered and signed
  • Courts, tribunals, and regulatory bodies across India recognise the AD card as valid proof of service
  • Additional cost: ₹27 for the AD service on top of base Registered Post charges

This is the recommended choice for: tenant eviction notices, loan recovery notices, cheque bounce notices (Section 138 NI Act), legal demand notices, property dispute notices, consumer complaints, and employment termination letters.

Speed Post with Acknowledgment Due (AD)

Speed Post with AD is also widely accepted as valid legal service. It is faster than Registered Post (1–4 days vs 3–10 days) and provides full online tracking plus the physical AD card. Speed Post with AD is increasingly preferred by lawyers for time-sensitive notices where the legal time limit starts from the date of delivery (e.g., Section 138 notices under the Negotiable Instruments Act — the 15-day window starts from receipt).

Speed Post Without AD

Speed Post without AD has online tracking but no signed delivery proof returned to the sender. It is less ideal for legal notices but some courts accept the printed tracking record showing "Delivered" as sufficient proof, combined with the booking receipt. For lower-stakes communications, Speed Post without AD is acceptable.

Legal Validity: What the Law Says

Deemed Service (Even if Refused)

Under Indian law — specifically Section 27 of the General Clauses Act, 1897 and various specific statutes — service of a notice by Registered Post is deemed to be effective from the date it would normally have been delivered, whether or not it was actually received. This means:

  • If the recipient refuses to accept the notice: service is still valid — refusal = deemed delivery
  • If the recipient is absent and the notice is returned "unclaimed" after the post office holds it: service is deemed on the date of attempted delivery
  • If the address is correct but the notice comes back "no such person": the sender has fulfilled the legal obligation of service

This protection applies only to Registered Post — ordinary or unregistered mail does not carry this protection.

Section 138 Cheque Bounce Notice

Under the Negotiable Instruments Act (Section 138), a cheque bounce demand notice must be served within 30 days of receiving the bank's dishonour memo. The notice should be sent by Registered Post with AD. The 15-day period within which the drawer must make payment starts from the date of receipt (or deemed receipt). Courts have consistently held that Registered Post dispatch is sufficient compliance with the notice requirement.

Step-by-Step: Sending a Legal Notice via India Post

  1. Prepare the notice document. The notice should be on paper (letter-size), clearly stating:
    • Date of the notice
    • Full name and address of the sender
    • Full name and address of the recipient
    • Subject and details of the legal demand or communication
    • Legal basis (section/statute under which notice is issued, if applicable)
    • Remedy demanded (payment by date, vacate premises by date, etc.)
    • Consequence of non-compliance
    • Signature of sender (or lawyer's signature and seal for advocate notices)
  2. Fold and seal the notice in an envelope. Write the recipient's complete address and PIN code on the front. Write your return address on the back.
  3. Visit your nearest Head Post Office or Sub Post Office. The counter staff will help you book a Registered Post or Speed Post article.
  4. Request the AD (Acknowledgment Due) facility. A green AD card will be attached to the envelope. Pay the additional ₹27 for AD service.
  5. Pay the postage — based on weight of the envelope and Registered Post or Speed Post rates.
  6. Collect your booking receipt. This receipt contains:
    • The Registered Post / Speed Post article number (your tracking number)
    • Date and time of booking
    • Sending post office details
    Keep this receipt safely — it is your primary proof of dispatch.
  7. Keep a copy of the notice. Retain a photocopy or digital scan of the exact notice you sent. If the matter goes to court, you will need to produce both the copy of the notice and the delivery proof.
  8. Wait for the AD card to be returned. After delivery, the postman collects the signed AD card and returns it to you by post. This typically takes 7–15 days for the AD card to arrive back.

What Proof to Retain for Legal Purposes

Document What It Proves
Booking receipt from post officeProof of dispatch — article number, date, sender, recipient address
Signed AD card (returned)Proof of delivery — recipient's (or authorised person's) signature
Tracking printout (Speed Post)Digital record of transit and delivery (supports the booking receipt)
Copy of the notice sentProves the exact content and demand made
Returned envelope (if unclaimed)Proves the article was returned undelivered — deemed service still valid

What if the Recipient Claims the Notice Was Not Received?

If you sent the notice by Registered Post with AD and:

  • The AD card was signed and returned: you have direct proof — the recipient's denial is rebuttable
  • The article was "refused" by the recipient: this is entered in the post office delivery register. The refusal itself constitutes deemed service under law.
  • The article was returned "unclaimed" (recipient was absent for 7+ days): deemed service applies from the date of first delivery attempt — courts have consistently upheld this

Summary

For legal notices: use Registered Post with AD card for maximum legal protection. Speed Post with AD is an acceptable faster alternative. Always retain your booking receipt, a copy of the notice, and the signed AD card when it returns. Even if the recipient refuses or is absent, service via Registered Post is legally deemed valid under Indian law.

📮 Find your nearest Head Post Office for sending Registered Post using PincodesInfo.in. Read more India Post guides in our Blog.