The MSME registration asks for the business activity by NIC code. For electric power generation and transmission by nuclear power plants, that activity is 35104.
NIC code · National Industrial Classification 2008
35104 is the 5-digit NIC 2008 code for electric power generation and transmission by nuclear power plants: a sub-class of class 3510, electric power generation, transmission and distribution, within division 35, electricity, gas, steam and air conditioning supply. Search a code or activity below, or copy the code for your Udyam or SPICe+ form.
This code
Division 35Group 351Class 3510Sub-class 35104
Electric power generation and transmission by nuclear power plants
Sub-class 35104 · Class 3510 · Group 351 · Division 35 · Section D, NIC 2008
The code
Where the code sits in the National Industrial Classification 2008, from section to sub-class, in the official wording.
351045 digits: 35 + 1 + 0 + 4NIC 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 35104. 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 35 covers electricity, gas, steam and air conditioning supply. It sits in section D, electricity, gas, steam and air conditioning supply.
Electric power generation, transmission and distribution.
Electric power generation, transmission and distribution. The official note for this class is quoted below.
Electric power generation and transmission by nuclear power plants. The full 5-digit code you enter where a form asks for the business activity by NIC code.
What it covers
35104 is a sub-class of class 3510, electric power generation, transmission and distribution. The NIC 2008 document explains the class in the note below, quoted exactly.
This class excludes:
- - production of electricity through incineration of waste, see 3821
Where you use it
Two registration forms ask for the business activity by NIC code. This is where 35104 is entered.
The MSME registration asks for the business activity by NIC code. For electric power generation and transmission by nuclear power plants, that activity is 35104.
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
35104 is for electric power generation and transmission by nuclear power plants. The codes below sit closest to it in NIC 2008: the other sub-classes of class 3510. Each has its own page with the official wording.
35105Class 3510 · another sub-class of the same class35106Class 3510 · another sub-class of the same class35107Class 3510 · another sub-class of the same class35109Class 3510 · another sub-class of the same class35101Class 3510 · another sub-class of the same classClass 3510 has 8 sub-classes in NIC 2008, including 35104. 5 of the others are shown here.
Questions
Electric power generation and transmission by nuclear power plants, in the National Industrial Classification 2008. It is a sub-class of class 3510, electric power generation, transmission and distribution.
Class 3510, electric power generation, transmission and distribution, has 8 sub-classes in NIC 2008. Besides 35104, those with a page here are: 35105 (Electric power generation using solar energy); 35106 (Electric power generation using other non conventional sources); 35107 (Transmission of electric energy); 35109 (Collection and distribution of electric energy to households, industrial, commercial and other users n.e.c.); 35101 (Electric power generation by hydroelectric power plants).
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 3510, 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.