Manual explained: this guide covers what it means, who it applies to, the step-by-step process, documents required, fees, due dates and penalties in India — so you can stay compliant with confidence and avoid costly mistakes.
Section 8 of the Patents Act makes an applicant who has filed the same invention abroad tell the Indian Patent Office about it, and keep telling it. Paragraph 09.03.06 of the Manual explains how the Office treats that duty, how it uses international work-sharing tools, and what the Controller may ask for beyond Form 3.
The Manual is the Patent Office's guidance and does not have the force of law; the Patents Act, 1970 and the Patents Rules, 2003 as now in force prevail. The Office revises its manuals and guidelines, so check the current version on ipindia.gov.in.
Section 8(1) requires a statement and undertaking about corresponding foreign applications in Form 3, and section 8(2) lets the Controller ask for the foreign objections, amendments and allowed claims. The Manual tells examiners to use WIPO CASE and WIPO DAS first and to ask the applicant only for what those tools do not give. The Manual's six-month updating rule has been replaced in 2024: the Rules as now in force prevail.
What the Manual says in paragraph 09.03.06
The paragraph opens by calling the Form 3 statement a requirement for grant and for keeping a patent alive. It adds that no fee is prescribed when the Form is filed within the rule 12 timelines, and that similar disclosure duties exist in other jurisdictions that follow the TRIPS Agreement. The Act is covered in our article on section 8 of the Patents Act, 1970; the Form and period are in rule 12. This article deals with the Office's practice.
The Manual then sets out the working of section 8 in its own summary:
- The statement names the country where each counterpart is being prosecuted, with its serial number, filing date and other prescribed particulars.
- The undertaking promises to keep the Controller informed, up to grant, of every later foreign application for the same or substantially the same invention.
- For an application that corresponds to an international application designating India, the six-month period is counted from the actual Indian filing date.
- Under section 8(2) the Controller may require details of novelty or patentability objections raised abroad, amendments made and claims allowed, as far as available to the applicant.
If your Form 3 needs to be reconciled with several foreign families, our patent objection reply support can prepare the particulars before the examination report arrives.
WIPO DAS and WIPO CASE: why the Office asks for less
Two arrangements shape practice. The WIPO Digital Access Service lets participating offices exchange priority and similar documents electronically, so the applicant need not order and forward them. The Manual notes a public notice on the service dated 12 March 2018. WIPO CASE lets offices share search and examination files; the Manual records that India began as an accessing office on 1 June 2015 and as a providing office in February 2018.
The practical outcome is stated in the five guiding principles the Manual gives to examiners and Controllers:
- Check whether the applicant has stated that the documents are available in WIPO CASE and DAS. If not, the applicant must supply the relevant documents and information.
- Check whether priority documents are already in DAS; if so, do not ask the applicant for further priority information.
- Use WIPO CASE to see search and examination reports of counterparts in the participating offices the Manual lists.
- Even so, the Controller may still ask for section 8(2) details, such as search or examination reports, claims allowed or refused, and amendments.
- Where the Controller accepts compliance through those tools, the documents are placed in the file wrapper by the Office.
So the applicant is not excused from Form 3. The tools reduce the paper the applicant must supply, but the statement of availability is itself something the examiner looks for.
What the examiner checks, and what you show
| What the examiner or Controller asks | What the applicant shows | Where it comes from |
|---|---|---|
| Is Form 3 on file, and is it complete? | Every counterpart listed with country, number, date and status | Section 8(1), rule 12 |
| Are priority documents already accessible? | A statement that they are in DAS or WIPO CASE | Manual 09.03.06, principles 1-2 |
| What happened to the claims abroad? | Foreign search or examination reports, amended and allowed claims | Section 8(2), principles 3-4 |
| Was the family kept up to date? | A fresh Form 3 or written update when new filings occur | The undertaking, rule 12 as now in force |
Section 8 in court, as the Manual reports it
The Manual summarises how courts have approached non-compliance. In short, revocation under section 64(1)(m) is discretionary because the section says "may", and the court asks whether the non-disclosure was deliberate and whether the missing information was material to grant. The Manual lists four decisions as references: Hoffmann-La Roche v. Cipla, Koninklijke Philips Electronics v. Maj. (retd.) Sukesh Behl, the Division Bench order in the Philips appeal, and Fresenius Kabi Oncology v. Glaxo Group (an Intellectual Property Appellate Board matter, cited as printed). All are named as cited in the Manual and are not discussed here. The IPAB has since been abolished by the Tribunals Reforms Act, 2021, and appeals now lie to the High Court; see appeal routes after the IPAB.
What has changed since 2019
The Manual says the six-month undertaking period for later foreign filings runs from the date of each foreign filing. That is no longer the law. The Patents (Amendment) Rules, 2024 changed rule 12: as now in force, the applicant keeps the Controller informed until three months from the issue of the first statement of objections, and the Controller may, with reasons recorded in writing, direct a fresh Form 3 within two months. Delay or extension for Form 3 can be considered on a request in Form 4. Form 3 itself was substituted. The Act and Rules as now in force prevail, and the details are in the rule 12 article. For extension and condonation generally, see rule 138.
A worked example
Kestrel Agri Pvt Ltd files an Indian application for a drip-irrigation valve and has a counterpart pending in another country. It lists the counterpart in Form 3 and states that the foreign priority papers are in DAS. At examination the Controller finds the foreign search report through WIPO CASE, sees that the foreign office cited a document on novelty, and asks Kestrel under section 8(2) for the amended claims that were allowed. Kestrel supplies them with its reply. Because Kestrel disclosed the family and answered, the section 8 point is closed and the objection turns to the claims.
Common lapses
- Filing Form 3 with an incomplete list of counterparts, or leaving out a divisional's family.
- Assuming the Office will fetch every foreign document, without saying so in Form 3.
- Not updating the Office when a new foreign application or foreign allowance occurs.
- Following the Manual's six-month update rule without checking the 2024 rule.
- Replying to a section 8(2) request with only the foreign claims as filed, not as allowed or refused.
Once a request has been made you will usually also meet the first statement of objections; our note on the first examination report shows how the reply is organised.
Need help with section 8 compliance?
A Form 3 that is accurate on day one and updated at the right moments avoids a later objection or a revocation argument. If you would like a review of your foreign family before the examination stage, speak to our patent objection reply team.
Key takeaways
- Section 8 and Form 3 are a condition of grant; the Controller may also ask for foreign objections and allowed claims under section 8(2).
- The Manual tells examiners to use WIPO CASE and DAS before asking the applicant.
- A statement of availability in those systems is expected from the applicant.
- Courts treat revocation for non-compliance as discretionary, as the Manual reports.
- The Manual's six-month update period is overtaken by rule 12 as amended in 2024.
Read next
- Rule 12: statement and undertaking regarding foreign applications
- Chapter 9: examination reports, replies and hearing
- Chapter 9: reference to the examiner and novelty
- How to file Form 3
Disclaimer: Based on the manuals and guidelines published by the Office of the Controller General of Patents, Designs and Trade Marks that are named in the article, as consulted on 4 October 2026. They are guidance and do not have the force of law; the Patents Act, 1970 and the Patents Rules, 2003 as amended (including the 2024 amendment rules) prevail, and the current versions on ipindia.gov.in should be checked. This article is general information, not legal advice; check the official text before acting.