Patent E-Filing in India: A Step-by-Step Guide

Patent e-filing means submitting a patent application to the Indian Patent Office through its online portal rather than in paper form, signing documents electronically instead of by hand. It is mandatory for registered patent agents and optional for every other applicant, who pays roughly 10% less than the physical-filing fee for choosing it.

Who Must E-File a Patent Application in India

Registered patent agents have no choice in the matter. Under Rule 6(1A) of the Patents Rules 2003, “a patent agent shall file, leave, make or give all documents only by electronic transmission duly authenticated,” with a narrow exception: if the Controller asks for an original document, it must reach the office within fifteen days, or it is treated as not filed at all. If a patent agent is filing on your behalf, the application goes through the e-filing portal by law.

Every other applicant can choose. Rule 6(1) allows a document to be tendered by hand, sent by post, registered post or speed post, or transmitted electronically, with only the electronic route required to be “duly authenticated.” An individual inventor, a startup, a small entity or a company filing without an agent may file on paper at the appropriate patent office. Doing so is entirely lawful; it simply costs roughly 10% more under the physical-filing column of the First Schedule fee table.

Which patent office branch has jurisdiction over your application depends on where you, or the first-named applicant, normally reside, have a place of business, or where the invention originated; only if none of those is in India does your address for service become the deciding factor (Rule 4). That office then handles every proceeding under the Act for your application, correspondence and hearings included. The e-filing portal itself is one central system, so you are not filing “at” a particular city when you file online.

What You Need Before You Start

Not every application needs every form. Which ones apply depends on your application type (ordinary, convention, PCT national phase, divisional, or a patent of addition) and your applicant category.

• Form 1, the application for grant of patent itself, with applicant, inventor and priority details.
• Form 2, your specification. A provisional specification needs only a description of the invention, though drawings can accompany either a provisional or a complete specification where the invention needs them to be explained; a complete specification must also end with a claim or claims and include an abstract (Section 10).
• Form 3, your undertaking to disclose corresponding foreign applications (the Section 8 statement), if one exists. You have six months from your filing date to submit this, so it does not have to be ready when you e-file Form 1, and the disclosure duty continues afterward: the Controller can call for an updated statement as your foreign applications progress.
• Form 5, the declaration of inventorship, ordinarily filed with the complete specification, or within one month after it with the Controller’s leave on a Form 4 request.
• Form 26, the Patent Office’s own template for authorising an agent to act for you; Rule 135 also accepts a separately drafted power of attorney in its place. This can follow within three months of filing; miss that window and Rule 135(1) halts further processing of the application until it is filed.
• Form 28, the declaration of startup, small entity or educational institution status, required with every fee-bearing document if you are claiming that fee category. Small entity status turns on the investment thresholds in Section 7(1) of the MSME Development Act 2006, not on how the business feels day to day; see our guide on patent benefits for MSMEs if you are unsure which category applies to you.

For the full document checklist and the wider filing procedure beyond e-filing itself, see our guide to the patent filing procedure in India.

Step-by-Step: Filing a Patent Application Online

1. Get a Digital Signature Certificate or set up e-Sign. A Digital Signature Certificate is a certificate-based electronic signature issued by an authorised certifying agency; the portal requires a Class II or Class III certificate without encryption. e-Sign, an Aadhaar- or PAN-based electronic signature service, is the alternative.
2. Register on the e-filing portal. Create a user profile with a user ID and password, then add your applicant details, including an email address and mobile number.
3. Log in and select your form. Choose Form 1 for a fresh application and mark whether it is ordinary, convention, PCT national phase, divisional or a patent of addition, since the current form asks for this at the top.
4. Fill in Form 1 and upload the specification. The email and mobile number fields on the current Form 1 require OTP verification before the application can be submitted. Attach Form 2, together with Form 3, Form 5 or Form 26 where they apply, plus drawings and the abstract.
5. Sign every document electronically. Each uploaded document needs your Digital Signature Certificate or e-Sign before the portal accepts it in place of a handwritten signature.
6. Pay the fee online. The portal calculates the amount from your applicant category and your specification’s page and claim count, then takes payment electronically, the route Rule 7(2) provides for online payment. Cash or a bank draft or banker’s cheque are the alternatives available only if you file on paper instead.
7. Keep your acknowledgment. On successful payment, the system generates a filing receipt showing your application number and Cash Book Receipt (CBR) number, the same reference that appears in the “for office use only” box on Form 1 itself.

A Digital Signature Certificate comes from a licensed certifying agency outside the portal itself, so it is worth arranging before you are up against a deadline; e-Sign, by contrast, is generated on the spot from your Aadhaar or PAN. The options and requirements above are confirmed on the Patent Office’s own filing process page.

Patent E-Filing Fees vs Physical Filing Fees

Start with the application fee itself, since it shows the gap most directly. Under the First Schedule to the Patents Rules 2003, e-filing Form 1 costs ₹1,600 for a natural person, startup, small entity or educational institution, and ₹8,000 for every other applicant. Filing the same form on paper costs ₹1,750 and ₹8,800. The Rule itself sets a flat rate: Rule 7(1)’s proviso states that “ten per cent additional fee shall be payable when the applications for patent and other documents are filed through physical mode.” Worked through the Schedule’s actual rupee figures, that comes to exactly 10% for the ₹8,000 row, and a touch under it (9.375%) for the ₹1,600 row.

A patent of addition under Section 54 gets a different rate again: the First Schedule gives such an application “a reduction of 50 per cent in fee as compared to other applications,” halving every figure above for that application type.

The same roughly 10% gap runs through the smaller fee lines inside Form 1’s specification fees, for example the charge for each specification sheet beyond 30 and each claim beyond 10. If you are claiming the lower rate as a startup, small entity or educational institution, rather than simply as a natural person, Rule 7(1) requires Form 28 to accompany every fee-bearing document making that claim. For the fees that apply at later stages, such as examination and renewal, see our full breakdown of patent fees and costs in India, or estimate your own filing cost with the patent fees calculator.

These figures are verified against the First Schedule as of August 2026 and can change; confirm the current amounts before you pay. They cover the government fee only. A Digital Signature Certificate carries its own separate issuance cost from the certifying agency, while e-Sign, drawn from your Aadhaar or PAN, does not.

What Happens After You Submit

Filing comes with two more dates to track, though only one is a deadline you must personally meet. Your application ordinarily stays off the public record for 18 months from its filing date or priority date, whichever is earlier, under Section 11A and Rule 24; that happens on its own, without anything required of you. You can ask the Controller to publish it sooner by filing Form 9 under Rule 24A, an optional step some applicants take when early publication suits their funding or licensing timeline.

The deadline that is genuinely yours to meet is the request for examination. For applications filed on or after 15 March 2024, Rule 24B requires that request, on Form 18, within 31 months of the filing date or priority date, whichever is earlier. Applications filed before that date keep the previous 48-month period, under the amendment’s own transitional clause. Section 11B(4) of the Patents Act is direct about what happens if you miss it: the application “shall be treated as withdrawn by the applicant.” The Rules separately give the Controller a general power to extend deadlines or condone delay on request; our guide to the request for examination looks at whether that route can help if you miss this one, and covers the request process itself in full.

When to E-File Yourself and When to Use a Patent Agent

Nothing in the Act or the Rules stops an individual inventor, a startup or a small company from e-filing a patent application without a patent agent. Subject to Section 134, which bars nationals of a country the Central Government has notified as non-reciprocating from applying for or holding a patent, being registered as an assignee, or applying for or holding a licence, Section 6 allows the true and first inventor, an assignee, or the legal representative of a deceased person who was entitled to apply, to apply either alone or jointly with someone else.

What a patent agent adds is not the ability to e-file; it is the specification itself, and the judgment behind claim scope, prior art, and how objections get answered later. In practice, applicants confident in their own drafting and comfortable with the Digital Signature Certificate or e-Sign process often file straightforward applications themselves. Those who are not tend to instruct a registered patent agent, who is required to e-file in any event under Rule 6(1A).

Either way, the portal mechanics are the easy part. Getting the specification, the supporting forms and the fee category right the first time tends to be where most delay comes from, whichever route you choose.

Frequently Asked Questions

This article explains the law on patent e-filing in India as at August 2026 and is for general information only. It is not legal advice. Government fees, forms, and procedures change; confirm current figures with the Indian Patent Office before you file. For advice on your specific invention, consult a registered patent agent.

Deadlines in this area are strict, and missing one can result in the loss of rights. The figures and timelines here are indicative and change; do not rely on them for a specific filing without confirming the current position and, where the stakes warrant it, taking professional advice.