Serving Documents 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.
Paragraphs 03.04.03 to 03.04.07 of the Manual deal with the mechanics that decide whether a filing is valid and on time: how documents reach the Office and when they are treated as received, what the document must look like, how a sequence listing is presented and how fees are paid. None of this is glamorous, but a defect here can delay an otherwise sound application.
Documents may be tendered by hand, sent by post or sent by authenticated electronic transmission, but a patent agent must file electronically only. Format rules cover language, paper, margins and numbering; a sequence listing is filed in computer-readable text form; and fees follow the First Schedule. 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, and the whole First Schedule was substituted in 2024.
The Office revises its manuals, so check the current version on ipindia.gov.in. Teams handling patent drafting and filing in volume build these checks into their routine. For the statutory text, see rules 5 and 6.
Leaving and serving documents (03.04.03)
The Manual restates rule 6 in practical terms. A document that must be filed or given at the Office, or to the Controller or another person, may be tendered by hand, sent by a letter addressed to the Controller at the appropriate office, or sent by post, registered post, speed post or authenticated electronic transmission. Documents sent by post or electronically are treated as filed at the time they would ordinarily have been delivered; it is enough to show the mail was correctly addressed and transmitted.
The practical rules the Manual draws out:
- A patent agent files, leaves, makes or gives all documents only by authenticated electronic transmission.
- If a document is asked for in original, it must be submitted within fifteen days or it is treated as not filed. Check the rule post for the period as now in force.
- A written communication to a patentee, applicant or opponent is properly addressed if sent to the postal or e-mail address on the register or given for service; where several e-mail addresses are given, the first one on the application or notice is preferred.
- Notices from the Office go by registered post, speed post, authenticated electronic transmission or special messenger, and the date of the notice is the date of dispatch unless the Act or Rules say otherwise.
Delay in receiving a communication
The Manual says the Controller may condone delay in doing an act by a party where the Office's own document reached the party late, if the party petitions immediately after receipt with a statement of circumstances and evidence. The delay condoned cannot exceed the gap between the date the party should have received the document in the ordinary course and the actual date of receipt.
Where the Office's server, the payment gateway or other IT infrastructure fails, the Manual asks the applicant or agent to take a screenshot of the problem and file it with a statement of circumstances as evidence. A separate paragraph allows condonation for war, civil disorder, strike, natural calamity or a general failure of electronic communication in the area, if the situation was serious enough to disrupt normal communication and the petition is filed promptly after it ends. The Manual says no specific form exists for these petitions and that Form 30 may be used.
Note the interaction with the 2024 changes: the general extension and condonation scheme is now in rule 138, and the Act and Rules as now in force prevail over the Manual's earlier description.
How the Office receives documents (03.04.04)
The Office receives filings at two counters: a fee counter for documents that carry fees and a non-fee counter for the rest. The fee counter staff enter the details in the module, stamp the document, generate a cash book receipt and record its number, date, amount and the application or patent number. The non-fee counter makes a receipt entry and stamps the document. Both counters pass documents to the Electronic Data Processing section for digitisation. For online filers this appears as the acknowledgement receipt.
Language, paper and signature (03.04.05)
All documents and copies, other than affidavits and drawings, must meet the Manual's format rules, which restate rule 9. In summary:
| Feature | The Manual's requirement |
|---|---|
| Language | Hindi or English, unless the Controller directs or allows otherwise |
| Text | Typewritten or printed, large and legible, widely spaced, one side of the sheet |
| Paper | Flexible, strong, white, smooth, non-shiny, durable A4 |
| Margins | A wider margin on the top and left, and a smaller one on the bottom and right |
| Pagination | Consecutive Arabic numerals at the centre of the bottom of each sheet |
| Line numbers | Every fifth line of description and claims, in the left margin |
| Names and addresses | In full, with nationality and identifying particulars |
| Signature | If illegible or in another script, a transcription in block letters in Hindi or English |
The exact character height, spacing and margin measurements are in the Manual and the rule; take them from the current text. Additional copies are filed if the Controller asks. The rule-based checklist is in rules 8 and 9.
Sequence listings (03.04.06)
If the application discloses nucleotide or amino acid sequences, the listing is filed in computer-readable text format with the application, and no printed form is needed. The Manual describes how a nucleotide sequence is laid out (groups of bases, a maximum per line, triplets for coding parts), requires a single electronic file in a compatible character code page, and recommends dedicated software such as PatentIn. It refers to the WIPO standard ST.25 for presentation. Because the listing is part of the disclosure, an incorrect or missing listing can be objected to as a defect in the specification.
The heads of fee (03.04.07)
The Manual sets out how fees are handled; it does not need to be read for amounts. The heads are:
- Mode. Offline fees by cash, bank draft or banker's cheque payable to the Controller of Patents; online fees through the payment gateway. A draft sent by post is treated as paid when it reaches the Controller.
- Entire fee with the document. Where a fee is payable for a document, the whole fee must accompany it; where a fee is payable for an act of the Controller, the act is not done until the fee is paid.
- Small entity and start-up. Every later document for which a fee is specified must carry Form 28 with evidence.
- Change of applicant category. If an application passes from a natural person, small entity or start-up to a person on a higher scale, the difference for earlier proceedings is paid with the transfer request in Form 6 and Form 30; where a start-up ceases to qualify because of age or turnover, no difference is payable.
- Refund. Fees once paid are not ordinarily refunded. An excess paid more than once for the same proceeding can be refunded on a request in Form 30.
Fee amounts, additional charges and refund percentages must be taken from the First Schedule as now in force, and the payment rules from rule 7.
Worked example
Indus Bioworks, a start-up, files an application disclosing a gene sequence. The agent uploads the specification as a PDF and the sequence listing as a text file in the required format. The agent later receives an Office letter on the third day after dispatch and files a reply on the due date. The delay-in-receipt route does not apply because the reply was on time; had the e-mail gone to a wrong address, the agent would have petitioned with evidence at once.
Need help with filing formalities?
Formal defects are avoidable. Our patent drafting and filing team prepares the documents in the prescribed format and files them electronically with the right forms and evidence.
Key takeaways
- A patent agent files only by authenticated electronic transmission.
- Originals asked for must be submitted promptly, or the document is treated as not filed.
- Format rules cover language, A4 paper, margins, page numbers and line numbers.
- A sequence listing is filed in computer-readable text format, not in print.
- Fee amounts come from the First Schedule as now in force, not from the Manual.
Read next
- Chapter 3: documents required for filing and comprehensive e-filing
- Chapter 3: application numbering, scrutiny, secrecy directions and atomic energy screening
- Rule 7: fees, mode of payment and refund
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.