Key Facts
Group 251 at a Glance
Code 251
Official title Manufacture of structural metal products, tanks, reservoirs and steam generators
Version NIC 2025
Source authority MoSPI
Section C - Manufacturing
Mf
NIC 2025 MoSPI source NIC Group 251 - Manufacture of structural metal products, tanks, reservoirs and steam generators
NIC Group 251 covers Manufacture of structural metal products, tanks, reservoirs and steam generators. It clusters closely related business activities and helps users compare nearby Classes before picking a final NIC...
Hierarchy tree
Practical Summary
What Group 251 Covers
Group 251 separates manufacture of structural metal products, tanks, reservoirs and steam generators into Classes such as undefined undefined, undefined undefined, undefined undefined. This is where similar business models start to diverge before final code selection.
Where Used In Practice
Where Group 251 Is Used
Group 251 is useful when a filing team has already chosen the Division and needs to separate nearby operating models before moving to Class pages.
- Udyam and MSME code research
- Company or LLP registration preparation
- Business activity shortlisting before filing
- Internal classification and vendor profiling
How To Choose
How to Narrow Down From Group 251
Use Group 251 to remove close but incorrect options. If two Groups look similar, compare child Classes and the actual revenue-generating activity.
In this section
251
252 Manufacture of structural metal products, tanks, reservoirs and steam generators
Manufacture of weapons and ammunition
259 Manufacture of other fabricated metal products; metalworking service activities
Common Questions About NIC 251
Which businesses fall under NIC 251?
Start here when the business belongs to manufacture of structural metal products, tanks, reservoirs and steam generators and then compare child entries such as undefined undefined, undefined undefined, undefined undefined.
Is NIC 251 a final filing code?
No. This is a hierarchy page. Continue to the six-digit Sub-class before using a code in registration or compliance records.
How do I verify that NIC 251 is correct before filing?
Check the parent hierarchy, compare 252 Manufacture of weapons and ammunition, 259 Manufacture of other fabricated metal products; metalworking service activities, and confirm that the official title matches the main revenue activity. For regulated or filing-critical decisions, verify the source row in the MoSPI dataset.
What happens if I use the wrong NIC code in Udyam or MCA registration?
A wrong code can cause mismatched business descriptions, follow-up questions or later compliance cleanup. It is better to compare nearby codes before filing than to correct a weak classification later.
Is there a legacy NIC 2008 equivalent for NIC 251?
Use the legacy converter only as a migration aid. Old NIC 2008 matches can suggest where to look, but NIC 2025 should remain the primary reference for new code selection.
NIC 2026 guidance
How Group 251 helps narrow your NIC search
NIC 251 is an intermediate hierarchy page, not usually the final code used in a filing. Use it to compare child entries, read the nearby-code context and move toward the most precise six-digit Sub-class. If the child list contains several similar activities, open each candidate page and compare the wording against the business's real operating model.
Data Source and Verification Date
Source layer
Official NIC 2025 Excel and PDF from MoSPI.
Last verified
2026-04-21 from the generated NIC 2025 source layer used in this build.
Disclaimer
This is an independent reference tool. Verify filing-critical decisions in official sources.