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Defence Procurement in India: DPP 2020, IDDM Classification and DGQA Process for Steel Component Manufacturers

Defence orders are open to MSME manufacturers of cable trays, earthing systems, gratings and structural steel, but the procurement route is specific and the qualification takes longer than a commercial order. Here's what a manufacturer needs to know before approaching DRDO, Ordnance factories, or a Tier-1 defence OEM.

Vajra International Exports · Trade Documentation & Procurement 9 min
Defence Procurement in India: DPP 2020, IDDM Classification and DGQA Process for Steel Component Manufacturers. Vajra International, cable tray, earthing & steel manufacturer and exporter, Howrah, India
Defence Procurement in India: DPP 2020, IDDM Classification and DGQA Process for Steel Component Manufacturers, technical guidance from Vajra International, ISO 9001:2015 certified cable tray, earthing & steel manufacturer and exporter, Howrah, India.

The question comes up at every MSME export outreach event: can a medium-sized steel fabricator in Howrah or Pune supply to the defence sector? The answer is yes. But the path is genuinely different from a commercial order and knowing the framework before you make your first approach saves a lot of time and some embarrassing conversations with procurement officers who have heard the same unrealistic pitch before.

The governing document: DAP 2020

The Defence Acquisition Procedure 2020 (DAP 2020, which replaced DPP 2016 and is still widely called DPP 2020 in industry) governs all Indian defence procurement above certain thresholds. For capital procurement (platforms, weapons systems, major equipment) DAP 2020 sets out the categories and vendor qualification routes. For revenue procurement (spares, consumables, maintenance items, structural components) the route is through the CFA (Competent Financial Authority) system, a simpler path that is accessible to established industrial manufacturers.

For a steel component manufacturer making cable trays for communication shelters, earthing grids for forward operating bases, gratings for naval vessel decks, or structural sections for defence housing (the most relevant entry point is usually revenue procurement through Defence Estates, CWC, or directly as a Tier-2 supplier to a DPSU or OEM that holds a DAP 2020 contract.

IDDM: what it means and why it matters

One of the headline changes in DAP 2020 was formalising the IDDM category: Indigenously Designed, Developed and Manufactured. IDDM classification gives domestic manufacturers the highest procurement priority in DAP 2020, ahead of 'Make in India' (manufactured in India to a foreign design) and import categories. For a structural steel fabricator, IDDM applies to products you have genuinely designed yourself: a blast-rated cable management system designed for a hardened shelter, a field-deployable earthing kit developed to a GSQR, a specialised grating for naval vessel deck loads. Standard cable trays made to IS 1079 or IS 5512 sections are not IDDM products. Custom-engineered solutions developed against a defence requirement are.

If your company has done the design work, and can demonstrate it with drawings, FEA reports, prototype test results, and design history documentation, pursuing IDDM classification opens procurement doors that the standard 'manufacture to print' position does not.

DGQA: the quality authority you need to understand

DGQA (Directorate General of Quality Assurance) is the body that approves defence supplier quality systems and signs off on product qualification. For most industrial components entering Indian defence supply, DGQA vendor registration is required before the first shipment. The process:

  • Vendor registration with DGQA: submit company profile, manufacturing capability statement, quality system evidence (ISO 9001 or equivalent), equipment list, and relevant product certifications.
  • Product evaluation: DGQA may conduct a factory visit, review manufacturing process documentation, and test samples against the applicable specification. The specification might be an IS standard, a MIL-STD, a STANAG equivalent, or a defence-specific GSQR (General Staff Qualitative Requirements).
  • Pre-despatch inspection during supply: once registered, DGQA inspectors may be deputed to your facility for inspection before despatch. Calibrated test equipment with current certificates, clear production lot traceability, and organised documentation are the minimum standard expected.
  • Re-evaluation: approval is not permanent. DGQA reviews vendor status periodically and can suspend approval if quality lapses appear in supplied product.

The DGQA registration process typically takes 3 to 6 months. Starting it before you win your first enquiry, rather than after receiving an order, is the only realistic approach. Trying to compress 6 months of qualification into 6 weeks because you need to start production rarely works.

DPSU and Ordnance Factory supply: the Tier-2 route

For a mid-size fabricator, the most accessible entry into defence supply is as a Tier-2 supplier to a DPSU (Defence Public Sector Undertaking: HAL, BEL, BEML, BDL, MDL, GRSE) or to an Ordnance Factory unit. DPSUs and Ordnance Factories procure large quantities of structural components, cable management systems, and electrical materials as bought-out items for their main assembly programmes. Order sizes for bought-out items at DPSU level are often in the Rs 50 lakh to 5 crore range per order) accessible for an established fabricator with ISO 9001 and BIS certification.

The approach: check the Approved Vendor List on the target DPSU's website or request it through their materials department. Apply for vendor registration with your quality documentation, ISO certificate, and relevant product approvals or BIS licences. Being IS 2062, IS 1079, or IS 5512 certified is directly relevant because DPSUs reference these standards for bought-out steel items.

Export to allied defence forces: end user certificates and SCOMET

If defence equipment is destined for export to another country's armed forces (directly or via an Indian OEM holding an export order) the product may be subject to India's SCOMET (Special Chemicals, Organisms, Materials, Equipment and Technologies) export control list. Standard structural steel, cable trays, earthing products and gratings are not SCOMET-listed under normal circumstances. But if the product is manufactured to a military specification or integrated into a weapons platform, check with DGFT before shipping.

An End User Certificate (EUC) from the recipient country's defence ministry is required for export of any defence-application product, even if the product itself is a non-SCOMET industrial component. The EUC confirms the end use and end user and is part of the export licence application filed with DGFT.

What a defence buyer will ask for in the documentation package

  • DGQA vendor registration certificate or product approval letter for the relevant product category.
  • ISO 9001 certificate with scope explicitly covering the manufacturing processes applicable to the supply.
  • Material Test Certificates in EN 10204 Type 3.1 or DGQA-accepted format, with NABL lab endorsement.
  • Calibration certificates for all measurement and test equipment used in inspection of the supplied product.
  • Process qualification records and First Article Inspection (FAI) report if the GSQR specifies one.
  • Packing and marking compliance per the relevant defence standard or MIL-STD-2073 equivalent.
Defence supply is a discipline builder. The documentation requirements (calibrated instruments, controlled MTCs, DGQA-stamped inspection reports, traceability from raw material to despatch) are more demanding than most commercial export specifications. Manufacturers who build these habits tend to win commercial export business too, because the same evidence that satisfies DGQA also satisfies a European or GCC project buyer.

Vajra International holds ISO 9001 and manufactures IS 2062 structural steel, cable tray systems, earthing grids and gratings at Howrah. We are available for DGQA vendor registration enquiries and Tier-2 defence supply qualification discussions.

Enquire about defence supply qualification

About the author

Vajra International Exports

Trade Documentation & Procurement

Our exports and trade team manages documentation, customs compliance and logistics for shipments to 30+ countries. We have hands-on experience with LC at sight, FOB/CIF/CFR, MTC issuance, Certificate of Origin (preferential and non-preferential), CEPA benefit claims and third-party inspection coordination.

  • EEPC / RCMC registered exporter
  • Active supply to UAE, Saudi Arabia, Nigeria, Philippines, Australia, UK and Germany
  • Customs documentation: MTC · COO · HS code advisory

Frequently asked questions

Specification, compliance and procurement questions our engineering team answers most often.

Are bolted or welded racks easier to maintain?
Bolted racks come apart for refurbishment, reconfiguration and repainting, they're the right call for plants that change layout often (chemical, pharma). Welded racks are stiffer and cheaper at first build but committed once installed. Most EPC packages mix bolted joints at the post-to-arm interface and welded joints inside the post.
What galvanizing thickness should I specify for outdoor service?
Hot-dip galvanizing to ASTM A123 minimum 85 µm (or 610 g/m² mass) is the working standard for outdoor service. Coastal sites push to 100 µm or duplex (HDG + epoxy paint). Industrial atmosphere with SO₂ and chlorides benefits from the duplex finish.
Does aluminium channel tray need bonding to earth?
Yes. Even though aluminium is conductive, the oxide film insulates joints, so a discrete earth strap with toothed washers at each joint, and a tray-to-structure bond at intervals, is needed for EMC and fault-clearing. IS/IEC bonding rules apply equally to aluminium.
What are the support spans for channel trays?
Typical support span is 1.0–1.5 m at the loaded condition for the 50×50 mm profile. Span tables vary by gauge, a 75×50 mm channel at 2.0 mm thickness handles 1.8 m spans with light cable loading. We share the deflection chart on request.
What should a procurement manager verify when shortlisting a cable tray supplier?
Four things matter more than price. First, does the manufacturer hold both IS 12352 and IEC 61537 type-test reports, not just self-declarations? Second, do they galvanize in-house or outsource? In-house galvanizing is the only way to guarantee consistent 85 µm zinc thickness on every batch. Third, can they supply the complete system, tray, bends, tees, covers, couplers and supports, in matched finish and thickness from one source? Fourth, have they supplied at scale to comparable projects, data centres, refineries, or metro rail, in the past 24 months? We can provide references and QA documentation for all four.
What standard governs ladder cable trays for international tenders?
IEC 61537 is the global benchmark, it covers load class, deflection limits, electrical continuity and corrosion class. We manufacture to IEC 61537, IS 12352 and NEMA VE 1 simultaneously, which lets EPCs write any of the three standards into the BOQ without re-sourcing. Load-deflection test reports are available for all standard profiles, share the specification and we'll confirm the compliant profile before you commit the BOQ.
Can I get colour-coded powder coating for different service zones?
Yes. RAL powder coating over an HDG or zinc-primed base is available in any standard colour. Common service-zone mappings we supply to: orange for fire-detection, red for emergency power, blue for structured data, grey for general power, green for safety services. We keep the colour-to-service map in our QA records and match it consistently across the project so incoming deliveries are sortable by site team at the roll cage without opening boxes. Specify the colour code on the BOQ and we lock it in.
Which ports do you ship from?
Export shipments originate from Kolkata Port (INKOL) or Haldia Dock Complex (INHAL, 110 km south of Kolkata), depending on vessel availability and container weight. Haldia is preferred for heavier structural steel shipments due to deeper draft; Kolkata handles smaller containers and project cargo efficiently. Transit times (approximate): Jebel Ali (UAE) 12–16 days; Dammam (Saudi Arabia) 14–18 days; Port Klang (Malaysia) 16–20 days; Manila (Philippines) 18–22 days; Mombasa (Kenya) 14–18 days; Felixstowe (UK) 22–28 days; Sydney (Australia) 24–30 days; Houston (USA) 25–32 days.
Can you supply compliance documentation for DEWA, ADDC or Saudi Aramco project approvals?
We supply a full technical documentation package to support utility-authority project submissions across the Gulf. For DEWA (Dubai Electricity and Water Authority) submissions: IEC 61537-compliant test data, cable tray dimensional drawings in DEWA-D-EN-04-030 format, HDG coating inspection reports, and a supplier declaration letter. For ADDC (Abu Dhabi Distribution Company): BS-standard compliance statements with IEC 60364-compliant installation data. For Saudi Aramco: SAES-P-104 (cable tray and cable management) and SAES-J-902 (earthing and cathodic protection) reference compliance statements, with full MTC traceability per batch. Our products are not pre-registered on DEWA's approved-vendor list, but Gulf EPC contractors routinely use our documentation package for project-specific vendor approval submissions, a process we have supported multiple times. Contact us with the project specification reference number and we prepare a tailored compliance file within 5 working days.
What Letter of Credit (LC) terms do you accept, and which Indian banks do you operate through?
We accept irrevocable sight LC as standard for first-time buyers and new-market orders. For buyers with an established trading history: usance LC at 30, 60 or 90 days after sight. We operate LC through SBI, HDFC Bank, Axis Bank, ICICI Bank and Citibank India, all with strong international correspondent banking networks. LC requirements: must be issued by a prime or first-class bank; must allow partial shipment for multi-container orders; must allow 21 days from bill of lading date for document presentation; UCP 600 terms preferred. Standby LC is also accepted on a case-by-case basis for long-running project supply. LC is the standard payment route for our Saudi Arabian, Nigerian and large-corporate UAE buyers, our documentation team is fully LC-experienced and produces compliant document sets to minimise discrepancies on first presentation.
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