The MSME registration asks for the business activity by NIC code. For manufacture of non-refractory ceramic pipes, conduits, guttering and pipe fittings, that activity is 23923.
NIC code · National Industrial Classification 2008
23923 is the 5-digit NIC 2008 code for manufacture of non-refractory ceramic pipes, conduits, guttering and pipe fittings: a sub-class of class 2392, manufacture of clay building materials, within division 23, manufacture of other non-metallic mineral products. Search a code or activity below, or copy the code for your Udyam or SPICe+ form.
This code
Division 23Group 239Class 2392Sub-class 23923
Manufacture of non-refractory ceramic pipes, conduits, guttering and pipe fittings
Sub-class 23923 · Class 2392 · Group 239 · Division 23 · 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.
239235 digits: 23 + 9 + 2 + 3NIC 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 23923. 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 23 covers manufacture of other non-metallic mineral products. It sits in section C, manufacturing.
Manufacture of non-metallic mineral products n.e.c.
Manufacture of clay building materials. The official note for this class is quoted below.
Manufacture of non-refractory ceramic pipes, conduits, guttering and pipe fittings. The full 5-digit code you enter where a form asks for the business activity by NIC code.
What it covers
23923 is a sub-class of class 2392, manufacture of clay building materials. The NIC 2008 document explains the class in the note below, quoted exactly.
This class excludes:
- - manufacture of artificial stone (e.g. cultured marble), see 2220
- - manufacture of refractory ceramic products, see 2391
Where you use it
Two registration forms ask for the business activity by NIC code. This is where 23923 is entered.
The MSME registration asks for the business activity by NIC code. For manufacture of non-refractory ceramic pipes, conduits, guttering and pipe fittings, that activity is 23923.
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
23923 is for manufacture of non-refractory ceramic pipes, conduits, guttering and pipe fittings. The codes below sit closest to it in NIC 2008: the other sub-classes of class 2392. Each has its own page with the official wording.
23929Class 2392 · another sub-class of the same class23921Class 2392 · another sub-class of the same class23922Class 2392 · another sub-class of the same classClass 2392 has 4 sub-classes in NIC 2008, including 23923.
Questions
Manufacture of non-refractory ceramic pipes, conduits, guttering and pipe fittings, in the National Industrial Classification 2008. It is a sub-class of class 2392, manufacture of clay building materials.
Class 2392, manufacture of clay building materials, has 4 sub-classes in NIC 2008. Besides 23923, they are: 23929 (Manufacture of other clay building materials); 23921 (Manufacture of bricks); 23922 (Manufacture of non-refractory ceramic sanitary wares: sinks, baths, water- closet pans, flushing cistern etc.).
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 2392, 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.