The MSME registration asks for the business activity by NIC code. For manufacture of tubes, pipes and hollow profiles and of tube or pipe fittings of cast-iron/cast-steel, that activity is 24311.
NIC code · National Industrial Classification 2008
24311 is the 5-digit NIC 2008 code for manufacture of tubes, pipes and hollow profiles and of tube or pipe fittings of cast-iron/cast-steel: a sub-class of class 2431, casting of iron and steel, within division 24, manufacture of basic metals. Search a code or activity below, or copy the code for your Udyam or SPICe+ form.
This code
Division 24Group 243Class 2431Sub-class 24311
Manufacture of tubes, pipes and hollow profiles and of tube or pipe fittings of cast-iron/cast-steel
Sub-class 24311 · Class 2431 · Group 243 · Division 24 · 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.
243115 digits: 24 + 3 + 1 + 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 24311. 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 24 covers manufacture of basic metals. It sits in section C, manufacturing.
Casting of metals.
Casting of iron and steel. The official note for this class is quoted below.
Manufacture of tubes, pipes and hollow profiles and of tube or pipe fittings of cast-iron/cast-steel. The full 5-digit code you enter where a form asks for the business activity by NIC code.
What it covers
24311 is a sub-class of class 2431, casting of iron and steel. The NIC 2008 document explains the class in the note below, quoted exactly.
This class includes activities of iron and steel foundries
Where you use it
Two registration forms ask for the business activity by NIC code. This is where 24311 is entered.
The MSME registration asks for the business activity by NIC code. For manufacture of tubes, pipes and hollow profiles and of tube or pipe fittings of cast-iron/cast-steel, that activity is 24311.
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
24311 is for manufacture of tubes, pipes and hollow profiles and of tube or pipe fittings of cast-iron/cast-steel. The codes below sit closest to it in NIC 2008: the other sub-classes of class 2431. Each has its own page with the official wording.
Class 2431 has 2 sub-classes in NIC 2008, including 24311.
Questions
Manufacture of tubes, pipes and hollow profiles and of tube or pipe fittings of cast-iron/cast-steel, in the National Industrial Classification 2008. It is a sub-class of class 2431, casting of iron and steel.
Class 2431, casting of iron and steel, has 2 sub-classes in NIC 2008. Besides 24311, they are: 24319 (Manufacture of other iron and steel casting and products thereof).
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 2431, 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.