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NIC 2025 MoSPI source

NIC Class 3312 - Repair and maintenance of machinery

NIC Class 3312 covers Repair and maintenance of machinery. This is the main comparison layer for deciding which specific six-digit Sub-class best fits the real activity described in Udyam, MCA or MSME workflows. It...

Level Class
Depth 4/5
Children 10
Last verified 2026-04-21

Hierarchy tree

331201
Repair and maintenance of engines and turbines excluding aircraft, ships, vehicle and motor cycle engines
 331202
Repair and maintenance of pumps and related equipment, fluid power equipment, valves
 331203
Repair and maintenance of metal cutting and metal forming machine tools and accessories, power-driven hand-tools, and other machine tools
 331204
Repair and maintenance of agricultural machinery and forestry and logging machinery including agricultural tractors
 331205
Repair and maintenance of mining, construction, and oil and gas field machinery; metallurgy machinery
 331206
Repair and maintenance of food, beverage, and tobacco processing machinery
 331207
Repair and maintenance of textile apparel, leather production machinery and papermaking machinery
 331208
Repair and maintenance of plastic and rubber machinery
 331209
Repair and maintenance of commercial refrigeration equipment, commercial water purifying equipment, vending machines, cash registers, photocopy machines
 331299
Repair and maintenance of other machinery n.e.c.
NIC navigation

Related NIC codes in this branch

Compare nearby hierarchy entries before choosing a code for a registration or business workflow.

Sub-class 331201
Repair and maintenance of engines and turbines excluding aircraft, ships, vehicle and motor cycle engines
 Sub-class 331202
Repair and maintenance of pumps and related equipment, fluid power equipment, valves
 Sub-class 331203
Repair and maintenance of metal cutting and metal forming machine tools and accessories, power-driven hand-tools, and other machine tools
 Sub-class 331204
Repair and maintenance of agricultural machinery and forestry and logging machinery including agricultural tractors
 Sub-class 331205
Repair and maintenance of mining, construction, and oil and gas field machinery; metallurgy machinery
 Sub-class 331206
Repair and maintenance of food, beverage, and tobacco processing machinery
 Sub-class 331207
Repair and maintenance of textile apparel, leather production machinery and papermaking machinery
 Sub-class 331208
Repair and maintenance of plastic and rubber machinery
 Sub-class 331209
Repair and maintenance of commercial refrigeration equipment, commercial water purifying equipment, vending machines, cash registers, photocopy machines
 Sub-class 331299
Repair and maintenance of other machinery n.e.c.
 Class 3311
Repair and maintenance of fabricated metal products
 Class 3313
Repair and maintenance of electronic and optical equipment
Practical Summary

What Class 3312 Covers

Class 3312 is the final decision layer before six-digit Sub-classes such as 331201 Repair and maintenance of engines and turbines excluding aircraft, ships, vehicle and motor cycle engines, 331202 Repair and maintenance of pumps and related equipment, fluid power equipment, valves, 331203 Repair and maintenance of metal cutting and metal forming machine tools and accessories, power-driven hand-tools, and other machine tools, 331204 Repair and maintenance of agricultural machinery and forestry and logging machinery including agricultural tractors and 6 more. Compare the child pages before using a code in a filing.

Where Used In Practice

Where Class 3312 Is Used

Class 3312 is used when the final six-digit code is not obvious and official notes or child Sub-classes need to be compared.

  • 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 Class 3312

Review every child Sub-class under Class 3312. If the wording is still broad, open the six-digit child pages before using a code in registration.

Official note

Class note from the source layer

This class includes the repair and maintenance of industrial and commercial machinery and equipment, e.g. sharpening or installing machinery blades and saws; the provision of welding (e.g. automotive, general) repair services; the repair of agricultural and other heavy and industrial machinery and equipment (e.g. forklifts and other materials handling equipment, machine tools, commercial refrigeration equipment, construction equipment and mining machinery), including machinery and equipment of division 28. This class excludes: - repair and maintenance of civilian ship and boat engines, see 3315 - repair and maintenance of civilian aircraft engines, see 3315 - repair and maintenance of engines for military fighting vehicles, ships, boats, air and spacecraft, see 3315 - installation, repair and maintenance of furnaces and other heating equipment, see 4322 - installation, repair and maintenance of elevators and escalators, see 4329 - repair and maintenance of computers, see 9510 - repair and maintenance of engines for motor vehicles, see 9531

Common Questions About NIC 3312

Which businesses fall under NIC 3312?

Start here when the business belongs to repair and maintenance of machinery and then compare child entries such as 331201 Repair and maintenance of engines and turbines excluding aircraft, ships, vehicle and motor cycle engines, 331202 Repair and maintenance of pumps and related equipment, fluid power equipment, valves, 331203 Repair and maintenance of metal cutting and metal forming machine tools and accessories, power-driven hand-tools, and other machine tools, 331204 Repair and maintenance of agricultural machinery and forestry and logging machinery including agricultural tractors and 6 more.

Is NIC 3312 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 3312 is correct before filing?

Check the parent hierarchy, compare 3311 Repair and maintenance of fabricated metal products, 3313 Repair and maintenance of electronic and optical equipment, 3314 Repair and maintenance of electrical equipment, 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 3312?

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 to move from Class 3312 to the right Sub-class

NIC 3312 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.