Form 2 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.
Form 2 is the form in which every patent specification is made, whether provisional or complete. Rule 13(1) of the Patents Rules, 2003 says so in one sentence, and the rest of rule 13, with rules 14 and 15, says what the specification must refer to, how drawings are handled and what the abstract may contain. If you are deciding whether to file a provisional specification first, our provisional patent filing team can prepare Form 2 and plan the follow-up.
"Every specification, whether provisional or complete, shall be made in Form 2" (rule 13(1)). Where an ordinary application has a provisional specification, the complete specification must be filed within twelve months from the date of filing, failing which the application is deemed to be abandoned (section 9(1)). The abstract may not contain more than one hundred and fifty words (rule 13(7)(c)). Fee entries 1 and 2 of Table I carry the specification charges.
What the Rules print about Form 2
The Second Schedule lists Form 2 as the provisional or complete specification under section 10 and rule 13. The text of Form 2 is not printed in the sources used for this article, so we do not describe its entries; the requirements below are those of the rules themselves. For the Act, read section 9: provisional and complete specifications and section 10: claims, abstract and biological material. The rule-wise treatment is in rule 13 on specifications.
Provisional and complete: the twelve months
Section 9(1) says that where an application (not being a convention application or a PCT application designating India) is accompanied by a provisional specification, a complete specification shall be filed within twelve months from the date of filing of the application, and that if it is not so filed the application is deemed to be abandoned. Under section 9(3) the Controller may, on the applicant's request within twelve months from filing, direct that a specification purporting to be complete be treated as provisional. Under section 9(4) the Controller may, on request before grant, cancel the provisional specification and post-date the application to the date of filing of the complete specification. For the comparison of the two documents, see provisional versus complete specification.
Rule 13(2) to (5): what the specification must carry
| Sub-rule | Requirement as printed |
|---|---|
| 13(2) | A specification for a divisional application under section 16 must contain specific reference to the number of the original application |
| 13(2A) | Inserted in 2024: an applicant may file one or more further applications under section 16, including for an invention disclosed in the provisional or complete specification or in a further application filed under section 16 |
| 13(3) | A specification for a patent of addition under section 54 must refer to the number of the main patent or application and state definitely that the invention comprises an improvement in, or a modification of, the main invention |
| 13(4) | Drawings, where needed, are prepared under rule 15, supplied with and referred to in detail in the specification, including the claims, where features illustrated are followed by their reference signs in parentheses |
| 13(5) | Irrelevant or other matter not necessary, in the opinion of the Controller, for elucidation of the invention is excluded from the title, description, claims and drawings |
The proviso to rule 13(4) lets a complete specification adopt the drawings filed with the provisional specification by referring to them as those left or filed with the provisional specification. See our guides on divisional applications and patents of addition.
Rule 13(7) and (8): title, abstract and deposit
Rule 13(7) says the abstract accompanying the specification, as specified in section 10(4)(d), commences with the title of the invention, and the title shall disclose the specific features of the invention normally in not more than fifteen words (13(7)(a)). The abstract contains a concise summary indicating the technical field, the technical advancement as compared to existing knowledge and the principal use, excluding any speculative use (13(7)(b)); may not contain more than one hundred and fifty words (13(7)(c)); and, where the specification has drawings, indicates the figure to accompany it when published, with each main feature followed by its reference sign (13(7)(d)). Rule 13(8) fixes three months from the date of filing of the application for the reference to the deposit of biological material under section 10(4)(ii)(A); where publication is requested under rule 24A, the reference is made on or before the date of that request. See rule 13(7) and (8) and the guide on writing the abstract.
Rules 14 and 15: amendments and drawings
Rule 14 says that when a specification or drawing is amended, the amended pages are retyped to form a continuous document (14(1)), with a marked copy and a statement of the portion amended and the reason (14(2)). Rule 15 requires drawings on standard A4 sheets with a clear margin of at least 4 cm at the top and left and 3 cm at the bottom and right (15(4)), with dimensions not marked (15(5)) and no descriptive matter except in flow diagrams (15(7)). See rules 14 to 16.
Fee: entries 1 and 2 of Table I
Amounts are as per the First Schedule as substituted in 2024, in rupees, in the order e-filing first column / e-filing others / physical first column / physical others. The first column is a natural person, startup, small entity or educational institution.
| Entry | Head | Amount |
|---|---|---|
| 1 | Application with provisional or complete specification | 1600 / 8000 / 1750 / 8800 |
| 1(i) | Each sheet beyond 30 | 160 / 800 / 180 / 880 |
| 1(ii) | Each claim beyond 10 | 320 / 1600 / 350 / 1750 |
| 2 | Complete specification after provisional, up to 30 pages and up to 10 claims | No fee |
| 2(i) | Each sheet beyond 30 | 160 / 800 / 180 / 880 |
| 2(ii) | Each claim beyond 10 | 320 / 1600 / 350 / 1800 |
Entries 1(iii) and 2(iii), for each page of sequence listing, are not allowed in physical filing. Entry 2(ii) prints 1800 for the physical others amount, while entry 1(ii) prints 1750; both are copied as printed. A specification in a section 54 application is eligible for a reduction of 50 per cent compared with other specifications (note to entry 2). Check the current Schedule for later changes; see patent fees by applicant category.
Example
Meridian Sensors Pvt Ltd files a provisional specification in Form 2 on 4 May; its complete specification, also in Form 2, is due within twelve months of that date (section 9(1)). With 36 sheets and 12 claims, entry 2(i) and 2(ii) charges apply to six sheets and two claims.
Common mistakes
- Omitting the original application number in a divisional specification, or the improvement statement in a patent of addition.
- Leaving reference signs out of the claims when drawings are used.
- Writing an abstract above one hundred and fifty words.
Need help with the specification?
A specification fixes what you can later enforce. Our provisional patent filing service prepares and checks Form 2, the drawings and the abstract against rules 13 to 15.
Key takeaways
- Form 2 is used for both provisional and complete specifications (rule 13(1)).
- The complete specification follows a provisional within twelve months (section 9(1)).
- The abstract is capped at 150 words (rule 13(7)).
Read next
- Form 1: application for grant of a patent
- Form 5: declaration of inventorship
- Provisional versus complete specification: filing strategy
- Patent specification: description, claims and abstract
Disclaimer: Based on the Patents Rules, 2003 as consolidated up to 21 September 2021 and as amended by the Patents (Amendment) Rules, 2024 and the Patents (Second Amendment) Rules, 2024, as consulted on 2 October 2026. Later amendment rules, forms and fees should be checked in their current form. This article is general information, not legal advice.