The MSME registration asks for the business activity by NIC code. For repair and maintenance of measuring, testing, navigating and control equipment of group 265, that activity is 33131.
NIC code · National Industrial Classification 2008
33131 is the 5-digit NIC 2008 code for repair and maintenance of measuring, testing, navigating and control equipment of group 265: a sub-class of class 3313, repair of electronic and optical equipment, within division 33, repair and installation of machinery and equipment. Search a code or activity below, or copy the code for your Udyam or SPICe+ form.
This code
Division 33Group 331Class 3313Sub-class 33131
Repair and maintenance of measuring, testing, navigating and control equipment of group 265
Sub-class 33131 · Class 3313 · Group 331 · Division 33 · Section C, NIC 2008
The code
Where the code sits in the National Industrial Classification 2008, from section to sub-class, in the official wording.
331315 digits: 33 + 1 + 3 + 1NIC 2025 · Notice dated 16 October 2026
On 18 November 2025 the Ministry of Statistics and Programme Implementation released NIC 2025, which uses 6-digit codes aligned with the UN's ISIC Revision 5. This page shows the NIC 2008 code 33131. The matching NIC 2025 code will be added here once it is mapped from MoSPI's official concordance.
How to read it
An NIC code is built in layers. Each digit narrows the one before it: the division, the group, the class, and finally the 5-digit sub-class. Divisions themselves are grouped under lettered sections.
The broadest numbered layer. Division 33 covers repair and installation of machinery and equipment. It sits in section C, manufacturing.
Repair of fabricated metal products, machinery and equipment.
Repair of electronic and optical equipment. The official note for this class is quoted below.
Repair and maintenance of measuring, testing, navigating and control equipment of group 265. The full 5-digit code you enter where a form asks for the business activity by NIC code.
What it covers
33131 is a sub-class of class 3313, repair of electronic and optical equipment. The NIC 2008 document explains the class in the note below, quoted exactly.
This class includes repair and maintenance of goods produced in groups
This class excludes:
- - repair of photocopy machines, see 3312
- - repair and maintenance of computers and peripheral equipment, see 9511
- - repair of computer projectors, see 9511
- - repair and maintenance of communication equipment, see 9512
- - repair of commercial TV and video cameras, see 9512
- - repair of household-type video cameras, see 9521
- - repair of watches and clocks, see 9529
Where you use it
Two registration forms ask for the business activity by NIC code. This is where 33131 is entered.
The MSME registration asks for the business activity by NIC code. For repair and maintenance of measuring, testing, navigating and control equipment of group 265, that activity is 33131.
The company incorporation form asks for the main industrial activity of the proposed company by NIC code.
Not GST. GST registration does not use NIC codes; goods and services there are classified by HSN and SAC codes.
Choosing the right code
33131 is for repair and maintenance of measuring, testing, navigating and control equipment of group 265. The codes below sit closest to it in NIC 2008: the other sub-classes of class 3313. Each has its own page with the official wording.
33132Class 3313 · another sub-class of the same class33133Class 3313 · another sub-class of the same classClass 3313 has 3 sub-classes in NIC 2008, including 33131.
Questions
Repair and maintenance of measuring, testing, navigating and control equipment of group 265, in the National Industrial Classification 2008. It is a sub-class of class 3313, repair of electronic and optical equipment.
Class 3313, repair of electronic and optical equipment, has 3 sub-classes in NIC 2008. Besides 33131, they are: 33132 (Repair and maintenance of irradiation, electromedical and electro theraputic equipmemts of class 2660); 33133 (Repair and maintenance of optical instruments and equipment of class).
In Udyam Registration, which asks for the business activity by NIC code, and in the SPICe+ company incorporation form, which asks for the main industrial activity by NIC code. GST registration does not use NIC codes.
About this page
The section, division, group, class and sub-class on this page, and the explanatory note for class 3313, are taken word for word from the official document “National Industrial Classification (All Economic Activities) 2008”, Central Statistical Organisation, Ministry of Statistics and Programme Implementation, Government of India.
This is reference information on the classification of a business activity. It is not advice on which code your own business should declare, and the official NIC document prevails if the two ever differ. A change in the classification, including the MoSPI concordance to NIC 2025, re-opens this page for checking.
Not sure which code fits your activity, or spotted a mismatch? Use the WhatsApp button on this page and tell us what the business sells and how.