How to Enter the PCT National‑phase in India (2026): Deadlines, Documents, Fees & Step‑by‑step Filing Procedure

Last updated: 21 September 2026, this guide reflects the Patents Act, 1970 and the Patents Rules, 2003 (as amended). Verify exact fee figures and current Rule references against the official IP India schedule before filing.

PCT national phase India entry is the procedural step by which an international application filed under the Patent Cooperation Treaty is pursued as a pending Indian patent application at the Indian Patent Office. For patent attorneys, in‑house IP counsel, patent agents and foreign applicants, missing a single formal requirement, a deadline, a certified copy, or a fee band, can cost priority rights that took years to build. This guide sets out the deadlines, the forms and documents you must lodge, the official fees payable, and a numbered filing procedure. Treat it as a practitioner’s manual, not a summary, and confirm every specific figure and Rule reference against the current official sources at the time of filing.

Introduction & At‑a‑Glance Checklist

Entering the PCT national phase India route means acting within the statutory window measured from the earliest priority date. The consequences of error can be serious: the Indian Patent Office generally cannot revive an application whose national‑phase window has closed except in the narrow circumstances provided under the Act and Rules. The checklist below is the “must‑do” spine of the process; each item is expanded in the sections that follow.

Quick checklist for PCT national phase India entry

• Confirm India was designated. Under current PCT practice, all contracting states, including India, are designated automatically on the international filing date.
• Diarise the deadline. Calculate 31 months from the earliest priority date and enter it in your docket with buffer reminders.
• Appoint an Indian patent agent. Foreign applicants without a place of business or residence in India must act through a registered patent agent and provide an address for service in India.
• Prepare Form 1 and supporting documents. Complete the application form, power of authority/attorney, priority documents and any translations.
• File and pay official fees. Lodge the national‑phase application through the IP India e‑filing portal and pay the correct fee band.
• File the request for examination (Form 18). Examination is not automatic in India; it must be requested within the prescribed period.

1. Eligibility & Deadlines for National Phase Entry India

Any international application filed under the PCT that designates India may enter the national phase in India. Because India is a contracting state of the Patent Cooperation Treaty, designation of India is automatic on the international filing date, there is no separate step to “add” India during the international phase. What matters at national‑phase entry is compliance with the Patents Act, 1970 and the Patents Rules, 2003 (as amended), as administered by the Controller General of Patents, Designs & Trade Marks.

Key dates: priority, international filing and national‑phase deadline

Three dates govern the timeline. The priority date is the date of the earliest application from which priority is claimed. The international filing date is the date the PCT application was filed. The national‑phase deadline for India is 31 months from the earliest priority date (or from the international filing date where no priority is claimed). This is the single most important date in the entire process. Note that India applies a 31‑month period rather than the 30‑month baseline used by some offices.

Because the 31‑month period is calculated from the earliest priority date rather than from the international filing date, applicants who claim priority from an application filed several months before the PCT filing have less calendar time than the raw international filing date might suggest. Always calculate from the earliest priority claim and confirm the current period against the WIPO PCT Applicant’s Guide national chapter for India and the IP India procedural pages before docketing.

Late entry, condonation and missed deadlines

India’s national‑phase deadline is generally treated as strict. There is no routine right to enter late simply on payment of a surcharge. In practice, this means the 31‑month date should be treated as a firm deadline. Where an applicant believes exceptional circumstances apply, any relief must be pursued under the specific provisions of the Patents Act and Rules, and the availability of such relief is fact‑specific and discretionary. The prudent course is to treat the deadline as immovable, build in a two‑to‑four‑week internal buffer, and instruct your Indian agent well before the window closes. If a deadline has already passed, contact a registered Indian patent agent immediately, any remedial avenues are time‑sensitive and narrow.

2. Step‑by‑Step Filing Procedure for PCT National Phase India

The procedure below is sequenced for a foreign applicant instructing an Indian agent, which is the most common scenario. Each step identifies who is responsible and the typical duration. The timeline table that follows consolidates the sequence; use it as your docket template.

Step 1: Decide the filing route & appoint an Indian patent agent

A foreign applicant with no place of business or residence in India must act through a patent agent registered with the Indian Patent Office, and must furnish an address for service within India. Begin by confirming the applicant’s commercial intention to enter India, national‑phase entry commits the applicant to Indian official fees and prosecution costs, so this decision should be taken deliberately rather than by default. Once confirmed, formally instruct the agent and provide the international application number, the WIPO publication number, and the full priority particulars. Allow zero to two weeks after the decision to enter.

Step 2: Prepare & file the national‑phase documents

The core filing instrument is Form 1 (Application for Grant of Patent). Alongside Form 1, prepare the power of authority/attorney authorising the agent, and assemble the international application, priority documents and any translations required. If the international application was not published in English, a verified English translation is required. This preparation stage typically takes one to two weeks; build in additional time where certified copies or translations must be sourced from foreign registries.

Step 3: Pay the filing & national‑phase fees

Official fees are payable at the time of filing. The fee band depends on the applicant category, natural person, startup, small entity, educational institution, or “others” (including large entities), and on the number of claims and pages. Because fee categories carry substantial reductions for eligible applicants, confirm the applicant’s category and gather supporting evidence (such as startup recognition or small‑entity status) before payment. Fees must be paid by the national‑phase deadline.

Step 4: Verification, e‑signature & document requirements

IP India operates a comprehensive e‑filing system. Documents are uploaded as PDFs and the submission is authenticated through the portal’s electronic verification and digital signature process. Physical originals or certified copies of certain documents may still need to be furnished where the Patent Office requires them. Confirm the current e‑verification and document requirements on the IP India portal at the time of filing, because acceptable methods of authentication are subject to periodic procedural updates.

Step 5: Application number allotment & acknowledgement

On successful e‑filing, the system generates a filing receipt and allots an Indian application number. Record the Indian application number against your international application in the docket, as it will be used in all subsequent correspondence and fee payments.

Step 6: File the request for examination

Examination in India is not automatic. The applicant (through the agent) must file a request for examination India on Form 18 within the prescribed period set out in the Patents Rules. Filing this request triggers the examination queue; without it, the application will be treated as withdrawn. Time this step carefully against the statutory period and consider filing it together with, or shortly after, the national‑phase entry to avoid oversight. An expedited examination request on Form 18A may be available for eligible applicants, confirm current eligibility categories with IP India.

Timeline table: Step / Who / Duration

3. Required Documents, Forms & Sample Language

Getting the documentation right is where most avoidable objections originate. The table below is your master document list. Each item should be checked off before the national‑phase application is submitted.

What to include in Form 1 (field‑by‑field notes)

Form 1 is the application for grant of patent and captures the core bibliographic data. When completing it for a PCT national‑phase entry, pay particular attention to the following fields:

• Applicant name and address. Enter the applicant exactly as recorded on the international application; discrepancies with the WIPO record invite objections and may require corrective assignment or change‑of‑name documents.
• Inventor details. List all inventors as named in the international application. Where the applicant is not the inventor, be ready to establish the applicant’s right to apply.
• International application particulars. Insert the PCT application number, the international filing date and the WIPO publication number so the Patent Office can link the national‑phase entry to the international file.
• Priority claim. Record each priority application number, country and date precisely; an incorrect priority date can undermine the priority benefit.

Power of authority/attorney & agent appointment

The power of authority (Form 26) authorises the registered Indian patent agent to act on the applicant’s behalf. Sample operative wording is: “The applicant hereby appoints [Agent Name], a patent agent registered with the Indian Patent Office (Registration No. [___]), to act on its behalf in respect of Indian Patent Application No. [___] (national phase of PCT/[___]), including filing, prosecution, and all correspondence with the Controller.” Execute the power of authority in accordance with current IP India requirements, and check whether notarisation or legalisation is required for the particular applicant.

Translations & certified copies

If the international application was not filed or published in English, a verified English translation must accompany the national‑phase entry. Priority documents not in English may require certified English translations. Where the Patent Office requires certified copies of priority documents or of the international application, these must be sourced and, for foreign documents, may require notarisation. Note that priority documents furnished to the International Bureau via the WIPO Digital Access Service (DAS) may satisfy the requirement in appropriate cases, confirm the current position with your agent.

Required‑documents table

4. National Phase Fees India: Costs & How to Calculate

Official fees for the PCT national phase India route are set by the First Schedule to the Patents Rules (the IP India fee schedule) and vary by applicant category. Filing electronically generally attracts a lower fee scale than physical filing. The principal cost components are the basic filing fee, the request‑for‑examination fee, and additional fees for claims and pages exceeding the prescribed thresholds. Professional (agent) fees are separate and depend on the complexity of the application.

Two structural points drive the total cost. First, applicant category matters significantly: natural persons, startups, small entities and educational institutions pay materially reduced official fees compared with large entities. Second, excess claims and pages are charged on a per‑unit scale above the base thresholds, so applications with many claims or long specifications cost more. Because the exact figures are periodically revised by Gazette notification, always confirm current amounts against the live IP India fee schedule before you calculate a quote.

Costs table

Worked examples

Example A, large entity, 20 claims, 25 pages. The applicant pays the “others” category basic filing fee plus the “others” request‑for‑examination fee. Excess fees are then added for each claim above the free threshold and each page above the free threshold. Because the large‑entity scale is the highest, and because 20 claims and 25 pages may breach the thresholds, the total official outlay is at the upper end. Add the agent’s professional fee on top.

Example B, startup / small entity, same 20 claims and 25 pages. The same structure applies, but the reduced startup/small‑entity scale substantially lowers both the basic filing fee and the request‑for‑examination fee, and the excess claim and page rates are also reduced. The net saving compared with Example A can be considerable, which is why establishing and evidencing eligibility for the reduced category before payment is worthwhile. Insert the exact figures from the current IP India schedule when preparing the client estimate.

5. After Filing: Examination, FER, Publication & Timelines

Once the national‑phase application is on file and the application number allotted, the application moves toward publication and examination. Understanding this phase helps applicants budget for prosecution and anticipate deadlines.

Publication & pre‑grant opposition

A PCT application will already have been published internationally by WIPO. On national‑phase entry, the application is processed for publication in India in the ordinary course. After publication, and before grant, any person may file a pre‑grant representation of opposition, so applicants should monitor the file for any third‑party objection during prosecution.

First Examination Report (FER)

Following a valid request for examination, the application enters the examination queue. The examiner issues a First Examination Report setting out objections on novelty, inventive step, patentable subject matter, sufficiency and formal matters. The applicant must respond, and place the application in order for grant, within the prescribed response period running from the date the FER is issued. Missing this response window can result in the application being deemed abandoned, so the FER deadline must be docketed as rigorously as the national‑phase deadline itself.

Grant & renewal fees

Where the objections are overcome, the application proceeds to grant. Renewal (annuity) fees fall due to keep the patent in force in accordance with the Act and Rules. Factor these ongoing costs into the portfolio budget from the outset, because they recur for the life of the patent.

6. Keeping Current: Recent Changes to Watch

Practitioners entering the PCT national phase India route should factor recent administrative refinements into their checklists. Points to re‑verify at filing fall into three practical categories: fee structure, where applicants should re‑confirm the current bands and any category reductions against the latest Gazette‑notified schedule rather than relying on cached figures; e‑filing and verification, where the acceptable methods of electronic authentication and the handling of digitally signed documents are set by IP India procedures; and procedural documentation, where the requirements for furnishing certified copies, translations and statements (such as Form 3 undertakings) should be reconfirmed at filing.

Because these updates are notified through the Gazette of India and IP India circulars, always cross‑check the specific notification in force on your filing date. Where a change touches deadlines or eligibility, treat it as decisive and re‑calculate before you file.

7. Common Pitfalls & How to Avoid Them

The most frequent failures in national‑phase practice are procedural rather than substantive. The list below reflects the errors that most often cause loss of rights or unnecessary objections.

• Miscalculating the deadline. Calculating 31 months from the international filing date instead of the earliest priority date is a classic and potentially fatal error. Always run from the earliest priority claim.
• Incorrect priority claims. Transcription errors in the priority application number or date can jeopardise the priority benefit. Verify against the WIPO record.
• Defective power of authority. An unsigned, wrongly executed, or missing power of authority delays filing and prosecution. Prepare and execute it early.
• Translation errors or omissions. Failing to furnish a verified English translation where required, or supplying an unreliable one, invites objections. Use a competent translator and include the required declaration.
• Paying the wrong fee band. Applying the large‑entity scale to an eligible startup, or relying on an outdated fee schedule, produces incorrect payments. Confirm category and current figures before paying.
• Assuming WIPO publication is sufficient. International publication does not substitute for filing the required documents and statements at the Indian Patent Office where these are demanded.
• Forgetting the request for examination. Examination is not automatic; failing to file Form 18 within the prescribed period leads to the application being treated as withdrawn.
• Overlooking Form 3 updates. The statement and undertaking regarding corresponding foreign applications must be filed and kept updated where applicable.

Comparison: E‑filing vs Physical Filing for National Phase Entry India

IP India favours electronic filing, and for most applicants e‑filing national phase India submissions is the default and recommended route. The comparison below sets out the practical differences.

Conclusion

Entering the PCT national phase India route is a disciplined, deadline‑driven exercise in which the details determine the outcome. Calculate the 31‑month window from the earliest priority date, appoint a registered Indian agent early, assemble Form 1 and every supporting document without gaps, pay the correct fee band, and file the request for examination within the prescribed period. Verify every fee figure, Rule reference and procedural requirement against the current IP India and WIPO sources at the time of filing, because periodic amendments make cached figures unreliable. Approached methodically, PCT national phase India entry is a routine step; approached casually, it is where hard‑won priority rights can be quietly lost.

For applicants managing cross‑border portfolios, treating this guide as a working checklist, and consulting a qualified Indian patent professional, is the surest way to protect the invention.

For further guidance, see the Patent practice area, India and the Global Law Experts, Lawyer directory: Patent lawyers in India.

Image alt: Filing PCT national phase in India, patent forms and timeline.

Sources

1. Controller General of Patents, Designs & Trade Marks (IP India)
2. WIPO, PCT System & Applicant’s Guide (national chapters)
3. India Code, official repository of statutes (Patents Act, 1970)
4. Gazette of India (eGazette), notifications
5. Supreme Court of India
6. IP India, Patent Office manuals, office orders & circulars