Dilenza
India

Third-Party Inspection Services in India

Dilenza provides independent industrial inspection in India for equipment manufacturers, fabrication facilities, shipyards, engineering suppliers and industrial project sites.

We match welding, coating and industrial inspectors according to your equipment, required qualifications, applicable codes and specifications, relevant industry experience, supplier location and schedule.

From one critical hold point to recurring, resident or multi-site technical presence, Dilenza supports industrial manufacturing projects throughout India.

ITP · Specification · PO · Drawings accepted

AWS CWI · CSWIP · IWI · AMPP · FROSIO

Single Visit · Recurring · Resident · Multi-Site

Heavy engineering and industrial equipment fabrication in India

Integrated India Inspection Coverage

Heavy Engineering · Pressure Equipment · Energy · Shipbuilding · Rail

Highlighted areas represent major industrial clusters, not Dilenza offices. Inspection requirements can be reviewed throughout India.

Inspection solutions

Industrial Inspection Support in India

Welding

Welding Inspection

Qualified welding inspection profiles for pressure equipment, piping, structural steel, offshore modules, shipbuilding, railway equipment and industrial machinery.

Profiles can be matched according to the equipment, materials, welding processes, applicable code, required qualification and project experience. For specialized projects, the matching process can also consider prior experience with pressure vessels, boilers, power equipment, rail vehicles, marine structures or other relevant fabricated products.

AWS CWI · CSWIP · IWI

Coating

Coating Inspection

Protective coating inspection for tanks, piping, steel structures, marine assets, offshore equipment and industrial machinery.

Profiles can be selected according to the asset, coating system, substrate, service environment and project specification.

AMPP · FROSIO · BGAS-CSWIP

Vendor

Vendor Inspection

Independent technical inspection while equipment is being manufactured, fabricated, assembled or tested at an Indian supplier. Source and supplier inspection are well-established activities within India's industrial market, including source inspection, manufacturing-process inspection, welding, coating, dimensional inspection, documentation review and witness testing.

Inspection can follow:

ITP · Hold Points · Witness Points · Manufacturing Milestones · Testing · FAT · Final Verification

Resident

Resident Inspectors

Long-term technical presence for manufacturing programs requiring frequent or continuous inspection over several weeks, months or longer.

Particularly relevant to:

Pressure Equipment · Heavy Fabrication · Offshore Modules · Shipbuilding · Power Equipment · Rail Manufacturing · Welding & Coating Programs

Industrial inspection in India

Independent Technical Oversight for Indian Manufacturing Projects

India has one of the world's broadest industrial manufacturing ecosystems.

Its supply chain spans heavy engineering, pressure equipment, refining and petrochemicals, power generation, structural steel, shipbuilding, railway equipment, mining machinery and complex industrial systems.

India's capital-goods manufacturing clusters are distributed across the country, including heavy and electrical engineering around Pune and NCR, mining and metallurgical machinery around Kolkata, machine tools around Bengaluru and Chennai, and extensive engineering activity throughout Gujarat.

The scale of the country means supplier inspection presents a particular challenge. Two manufacturers on the same project may be located more than a thousand kilometres apart, while the technical expertise required for each piece of equipment may be completely different.

Dilenza therefore does not assign inspectors based only on proximity.

The technical profile may also need the correct:

  • Certification
  • Equipment experience
  • Materials knowledge
  • Welding or coating background
  • Manufacturing experience
  • Applicable-code knowledge
  • Relevant industry experience
  • Project responsibilities

Dilenza can support industrial inspection services in India at:

  • Heavy engineering facilities
  • Pressure equipment manufacturers
  • Piping fabricators
  • Steel fabricators
  • Shipyards
  • Rail equipment manufacturers
  • Machinery suppliers
  • Power equipment manufacturers
  • Process equipment suppliers
  • Industrial project sites

Inspection can cover one defined manufacturing stage or continue throughout a longer production or fabrication program.

The agreed scope follows controlled documentation such as:

Inspection & Test Plan · Technical Specification · Purchase Order · Drawings · Client Procedures · Applicable Codes & Standards

The supplier defines the location. The equipment defines the expertise.

What is being inspected?

Equipment and Projects We Support in India

Pressure Equipment & Process Systems

Pressure Vessels · Reactors · Heat Exchangers · Columns · Boilers · Skids · Critical Piping

India has significant manufacturing capacity for large and technically demanding pressure and process equipment. Hazira is a particularly important example: heavy-engineering operations there manufacture custom equipment and critical piping for refineries, petrochemicals, fertilizers, chemicals, oil and gas, thermal power and nuclear projects, with heavy plate forming, advanced welding, heat treatment, hydrotesting and advanced NDT capabilities. Inspection can support material verification, traceability, welding, NDT witnessing, dimensional inspection, PWHT, hydrotesting and documentation.

Oil, Gas & Petrochemical Equipment

Process Modules · Piping · Pressure Equipment · Tanks · Skids · Mechanical Packages

Gujarat is one of India's strongest process-industry regions, with major manufacturing and petrochemical activity around Hazira, Dahej, Vadodara and Jamnagar. Dahej contains a major petroleum, chemicals and petrochemicals investment region together with chemical, LNG and industrial port infrastructure. Inspection can support pressure systems, piping, welding, NDT, tanks, modules, mechanical equipment and protective coatings. For equipment fabricated over several months, recurring vendor surveillance can provide greater technical visibility than a single final inspection.

Power Generation Equipment

Turbines · Generators · Boilers · Transformers · Valves · Piping · Mechanical Systems

India has a large domestic power-equipment manufacturing network. BHEL currently operates manufacturing units across the country, including heavy electrical equipment in Haridwar, heavy power equipment in Hyderabad, boilers in Tiruchirappalli, industrial valves in Goindwal, transformers in Jhansi, and heavy plates and vessels in Visakhapatnam. Inspection can support manufacturing, welding, material control, mechanical assembly, dimensions, pressure testing, functional testing and FAT.

Structural Steel & Heavy Fabrication

Steel Structures · Modules · Pipe Racks · Platforms · Frames · Heavy Welded Assemblies

India has extensive heavy-fabrication capability serving energy, infrastructure, offshore, mining and industrial projects. Inspection can support material identification, fit-up, welding, dimensional verification, NDT witnessing, surface treatment, protective coatings and final verification. For modular projects, inspection may need to follow fabrication from structural assembly through piping, testing and final load-out.

Shipbuilding & Marine Equipment

Commercial Vessels · Naval Vessels · Hull Sections · Marine Piping · Ship Systems · Repairs

India has a large and expanding shipbuilding and ship-repair sector. Cochin Shipyard remains one of the country's major shipbuilders and in August 2026 delivered both a new multi-purpose commercial vessel for a German owner and another indigenously constructed naval vessel. The Government of India is also implementing a major shipbuilding-development program, with new greenfield shipbuilding clusters planned across several coastal states. Inspection can support structural welding, hull fabrication, marine piping, materials, dimensional control, NDT witnessing, machinery and protective coatings.

Rail & Transportation Equipment

Trainsets · Coach Structures · Bogies · Rail Systems · Welded Assemblies · Components

India has one of the world's largest railway manufacturing ecosystems. The Integral Coach Factory in Chennai manufactures all-welded railway passenger coaches, while international manufacturers operate a distributed production network across the country. Alstom's current Indian manufacturing model illustrates this supply-chain structure: trainsets for major metro projects are manufactured at Sri City, propulsion equipment at Coimbatore and bogies at Savli in Gujarat. Inspection can support welding, fabrication, bogies, car bodies, assembly, dimensions, testing and documentation. Where applicable, relevant EN 15085 or railway welding experience can form part of inspector matching.

Machinery & Heavy Industrial Equipment

Mining Equipment · Industrial Machinery · Mechanical Assemblies · Material-Handling Systems · Engineered Equipment

India's machinery ecosystem includes mining and metallurgical equipment, machine tools, bulk-material systems and specialist industrial machinery. Inspection can be arranged during fabrication, mechanical assembly, dimensional verification, functional testing, FAT and final inspection. For mining or metallurgical equipment, inspector matching can consider prior experience with heavy mechanical systems and welded structures.

Across India

Inspection Across India's Main Industrial Regions

India's scale makes regional inspector coverage and technical matching especially important.

Highlighted areas represent major industrial clusters, not Dilenza offices. Inspection requirements can be reviewed throughout India.

Hazira · Surat · Dahej · Vadodara · Ahmedabad · Jamnagar

Gujarat

Heavy Engineering · Petrochemicals · Pressure Equipment · Piping · Offshore Fabrication

Gujarat is one of India's major hubs for heavy engineering, petrochemicals, pressure equipment, piping and offshore fabrication.

Hazira is particularly important for heavy engineering and modular fabrication. Large process equipment, nuclear equipment, critical piping and modular structures can be manufactured and loaded directly from waterfront facilities.

Dahej and Vadodara add major chemical, petrochemical and engineered-equipment activity.

Dilenza can support one hold point, recurring supplier surveillance or longer technical presence.

Inspection requirements can involve:

  • Pressure vessels
  • Reactors
  • Heat exchangers
  • Piping
  • Modules
  • Structural steel
  • Tanks
  • Protective coatings

Mumbai · Navi Mumbai · Pune · Nashik · Aurangabad

Maharashtra

Engineering · Machinery · Energy Equipment · Process Industry · Fabrication

Maharashtra contains one of India's most diversified engineering ecosystems.

Pune is an important capital-goods and manufacturing cluster, while Mumbai and its surrounding industrial areas contain EPC companies, equipment suppliers, fabrication facilities and process-industry organizations. Invest India's capital-goods mapping identifies Pune specifically with heavy electrical engineering and tooling activity.

Inspection can support:

  • Industrial machinery
  • Mechanical packages
  • Pressure equipment
  • Fabricated structures
  • Energy systems
  • Supplier testing

Chennai · Kattupalli · Tiruchirappalli · Coimbatore · Hosur

Tamil Nadu

Heavy Engineering · Rail · Boilers · Piping · Machinery · Shipbuilding

Tamil Nadu carries strong heavy-engineering and rail emphasis.

Tiruchirappalli is an established boiler and heavy-engineering manufacturing location, while BHEL also operates seamless-tube and power-plant-piping manufacturing units in the state.

Chennai adds rail manufacturing and marine activity, while Coimbatore has substantial machinery and engineered-equipment capability.

Inspection can support:

  • Boilers
  • Piping
  • Pressure systems
  • Rail equipment
  • Machinery
  • Structural fabrication
  • Marine equipment

Hyderabad · Visakhapatnam · Sri City

Andhra Pradesh & Telangana

Power Equipment · Pressure Vessels · Rail · Heavy Engineering · Shipbuilding

Hyderabad is particularly relevant to heavy power equipment and engineered systems.

Visakhapatnam adds pressure-equipment, marine and heavy-industrial relevance; BHEL operates its Heavy Plates & Vessels Plant there.

Sri City has become an important railway manufacturing location, including Alstom trainset production for Indian and export projects.

Inspection can support:

  • Power equipment
  • Pressure vessels
  • Rail vehicles
  • Heavy fabrication
  • Machinery
  • Marine equipment

Kochi

Kerala

Shipbuilding · Ship Repair · Marine Engineering

Kochi carries strong marine emphasis.

Cochin Shipyard is active in both commercial and naval vessel construction and operates one of India's major ship-repair facilities. Its current 2026 work includes multi-purpose commercial vessels, naval craft and additional structural fabrication programs.

For long-duration vessel construction, recurring or resident technical presence can provide continuity across multiple manufacturing stages.

Inspection can support:

  • Hull structures
  • Structural welding
  • Marine piping
  • Machinery
  • Fabrication
  • Repairs
  • Coatings

Bengaluru · Tumakuru · Mysuru

Karnataka

Machinery · Engineering · Energy Systems · Industrial Equipment

Karnataka combines advanced engineering with machine-tool and industrial-equipment manufacturing.

Invest India's capital-goods cluster mapping identifies the Bengaluru–Tumakuru area as a significant machine-tool center.

Inspection can support:

  • Machinery
  • Mechanical assemblies
  • Engineered systems
  • Fabricated equipment
  • Testing
  • FAT

Kolkata · Howrah · Durgapur · Jamshedpur

Eastern India

Steel · Mining Equipment · Heavy Engineering · Rail · Metallurgical Equipment

Eastern India is a major hub for steel, mining equipment, heavy engineering and metallurgical manufacturing.

The Kolkata region is identified as a major cluster for mining and metallurgical machinery, while the broader eastern industrial corridor contains large steel and engineering supply chains.

Inspection requirements can involve:

  • Mining machinery
  • Steel structures
  • Material-handling equipment
  • Pressure equipment
  • Rail components
  • Heavy fabrication

Delhi NCR · Faridabad · Noida · Haridwar

NCR & Northern India

Engineering · Machinery · Heavy Electrical Equipment · Industrial Manufacturing

Northern India contains a broad engineering and equipment-manufacturing base.

The NCR is identified as a capital-goods cluster for heavy electrical engineering, while Haridwar hosts major BHEL heavy-electrical and forging manufacturing operations.

Inspection can support:

  • Heavy electrical equipment
  • Machinery
  • Fabricated components
  • Mechanical systems
  • Supplier testing
  • FAT

Other Industrial Locations in India

Dilenza can also review requirements in Bhopal, Indore, Raipur, Bhilai, Ranchi, Bhubaneswar, Jaipur, Ludhiana, Chandigarh, Goa, Kochi, Mangalore and other Indian manufacturing locations.

Coverage depends on supplier location, equipment, technical scope, required qualification, project schedule and suitable inspector availability.

Request an Inspector Anywhere in India
Project-specific matching

The Right Inspector, Not Just the Nearest Inspector

Inspector selection starts with the technical requirement.

Inspector selection should be based on the project requirements rather than proximity alone. We look at who has the right technical background for the equipment being manufactured. An inspector experienced with structural steel is not automatically the right profile for a hydroprocessing reactor, a pressure-vessel specialist may not be the right choice for a railway bogie, and a shipbuilding welding inspector may not have the same background as an inspector experienced with boiler or turbine manufacturing.

Step 01

You Send

  • Location
  • Equipment
  • Inspection Scope
  • Required Qualification
  • Dates

Step 02

We Match

  • Certification
  • Equipment Experience
  • Industry Experience
  • Project Experience
  • Location
  • Availability

Step 03

You Review

Relevant inspector CVs and qualifications can be submitted for technical review.

Step 04

Inspection

The confirmed inspector attends according to the agreed scope and schedule.

Vendor inspection

Technical Visibility During Manufacturing

Independent vendor inspection in India can provide technical oversight while equipment remains at the supplier.

For complex pressure equipment, modules, power systems and heavy fabricated structures, final inspection alone may provide limited visibility into earlier manufacturing stages.

Depending on the client's ITP:

Documentation

Confirm the applicable technical requirements and inspection stages.

Materials

Verify material identification, certification and traceability.

Fabrication

Attend agreed manufacturing, welding, fabrication and assembly activities.

Hold & Witness Points

Provide independent technical presence at project-defined milestones.

Testing / FAT

Witness NDT, pressure, functional or acceptance testing within the agreed scope.

Final Verification

Complete the agreed inspection before release or shipment.

Vendor inspection can provide visibility into:

  • Manufacturing progress
  • Material identification and traceability
  • Welding and fabrication
  • Dimensional requirements
  • NDT status
  • Heat treatment where applicable
  • Mechanical assembly
  • Hydrostatic or functional testing
  • Surface preparation and coatings
  • Technical documentation
  • Project-defined acceptance requirements

For international EPC contractors and equipment buyers sourcing from India, this provides independent technical visibility while corrective action is still practical at the supplier. Inspection frequency can range from one critical attendance to recurring manufacturing surveillance or resident technical presence.

Diligence before the equipment leaves the supplier.

Qualifications & technical requirements

Depending on the Assignment, Inspector Profiles May Include

Certification alone does not determine technical suitability.

Welding

  • AWS CWI
  • CSWIP 3.1
  • CSWIP 3.2
  • International Welding Inspector
  • Relevant NDT Qualifications

Protective Coatings

  • AMPP
  • FROSIO
  • BGAS-CSWIP

Coating profiles can be reviewed according to the qualification, coating system, environment and relevant project experience.

Profiles can also be matched according to:

Equipment · Materials · Welding Processes · Manufacturing Methods · Coating Systems · Pressure Equipment Experience · Oil & Gas Experience · Power Experience · Shipbuilding Experience · Rail Experience · Applicable Codes · Assignment Duration

Explore Inspector Qualifications

Common Project Requirements

Depending on controlled project documentation:

Welding & Fabrication

  • ISO 3834
  • ISO 5817
  • ISO 9606
  • ISO 15614
  • ISO 17637
  • EN 1090
  • EN 15085

Pressure Equipment

  • ASME
  • ASME B31
  • API
  • EN
  • ISO

Coatings & General

  • ISO 12944
  • AMPP
  • AWS
  • Client Specifications
  • EPC Specifications

Depending on the equipment, projects may also involve specific ASME Boiler & Pressure Vessel Code sections, ASME B31 piping codes, API requirements or client/EPC specifications. The applicable code, edition, acceptance criteria and inspector responsibilities should always come from controlled project documentation.

Project inspection and regulatory requirements

Certain pressure equipment, boilers, lifting equipment, vessels and other industrial products in India may be subject to statutory inspection, certification or legally defined approval requirements. Dilenza's ordinary vendor and project inspection services should not be treated as a substitute for statutory inspection, classification, authorized certification or another legally required conformity-assessment function. Where such involvement is required, it should be identified separately from the purchaser's independent inspection scope.

Common questions

Third-Party Inspection in India

Does Dilenza provide third-party inspection services throughout India?

Yes. Inspection requirements can be reviewed throughout India according to supplier location, equipment, technical scope, required qualifications, schedule and suitable inspector availability.

Can Dilenza provide welding inspectors in India?

Yes. Welding inspection requirements can be reviewed according to the equipment, materials, welding processes, applicable codes and required qualifications.

Can Dilenza provide coating inspectors in India?

Yes. Protective coating inspection can support tanks, piping, steel structures, marine equipment, offshore structures and other industrial assets.

Can Dilenza provide vendor inspection in India?

Yes. Vendor inspection can support manufacturing surveillance, ITP hold and witness points, testing, FAT and final verification.

Can Dilenza provide inspectors in Gujarat?

Yes. Gujarat is particularly relevant to heavy engineering, petrochemicals, pressure equipment, process piping, offshore fabrication and structural steel.

Can Dilenza provide inspectors in Hazira?

Yes. Hazira is one of India's most important locations for heavy process equipment, critical piping, modular fabrication and industrial engineering.

Can Dilenza provide inspection in Dahej?

Yes. Dahej is particularly relevant to chemical, petrochemical, LNG, pressure-equipment and process-industry projects.

Can Dilenza provide inspectors in Mumbai or Pune?

Yes. Machinery, engineering, process equipment, fabricated systems and industrial projects can be reviewed throughout Mumbai, Pune and Maharashtra.

Can Dilenza provide inspectors in Chennai?

Yes. Chennai and the surrounding industrial corridor are relevant to rail equipment, machinery, marine engineering, structural fabrication and industrial manufacturing.

Can Dilenza provide inspection in Tiruchirappalli?

Yes. Tiruchirappalli is particularly relevant to boilers, pressure systems, piping and heavy power-equipment manufacturing.

Can Dilenza provide inspectors in Hyderabad?

Yes. Hyderabad is particularly relevant to heavy power equipment, engineered systems, machinery and industrial manufacturing.

Can Dilenza provide inspection in Visakhapatnam?

Yes. Visakhapatnam is relevant to pressure vessels, heavy fabrication, shipbuilding, marine engineering and industrial projects.

Can Dilenza support Indian shipyards?

Yes. Inspection can support hull fabrication, structural welding, marine piping, machinery, NDT witnessing and protective coatings according to the project scope.

Can Dilenza provide inspectors in Kochi?

Yes. Kochi is particularly relevant to commercial and naval shipbuilding, ship repair and marine engineering.

Can Dilenza inspect pressure vessels manufactured in India?

Yes. Inspection can support reactors, pressure vessels, columns, heat exchangers, boilers, tanks and other pressure equipment according to controlled project documentation. Any separate statutory requirement must be identified independently.

Can Dilenza support ASME projects in India?

Yes. Where ASME requirements apply, relevant code and equipment experience can form part of inspector matching. The exact code section, edition and inspection responsibilities should be confirmed from controlled project documentation.

Can Dilenza inspect process piping?

Yes. Inspection can support material traceability, fit-up, welding, NDT witnessing, dimensional verification, pressure testing and documentation.

Can Dilenza inspect railway equipment manufactured in India?

Yes. Inspection requirements involving car bodies, bogies, welded structures, mechanical systems and rail components can be reviewed according to project requirements.

Can Dilenza support EN 15085 railway projects?

Yes. Where EN 15085 applies, relevant railway welding and manufacturing experience can form part of inspector selection.

Can Dilenza inspect power equipment?

Yes. Inspection can support boilers, turbines, generators, transformers, valves, piping and associated mechanical systems according to the project scope.

Can Dilenza inspect structural steel fabrication?

Yes. Inspection can support heavy steel structures, modules, platforms, pipe racks and welded assemblies.

Can Dilenza support refinery or petrochemical shutdowns?

Yes. Welding, coating and other technical inspection resources can be reviewed for planned shutdown and maintenance programs according to the required disciplines and location.

Can Dilenza provide resident inspectors in India?

Yes. Resident technical presence can support projects requiring frequent or continuous inspection over several weeks, months or longer.

Can Dilenza provide rotational inspectors?

Yes. Rotational arrangements can be reviewed for longer manufacturing, yard or industrial programs requiring structured technical coverage.

Can an inspector attend for only one day?

Yes. Single visits can support one hold point, manufacturing milestone, FAT, pressure test, repair verification or final inspection.

Can we request AWS CWI, CSWIP or IWI inspectors?

Yes. Required welding qualifications can form part of profile matching together with relevant equipment and project experience.

Can Dilenza provide AMPP or FROSIO coating inspectors?

Yes. Coating profiles can be reviewed according to the qualification, coating system, environment and relevant project experience.

Can we review the inspector CV before confirmation?

Yes. Relevant inspector CVs and qualifications can be submitted for technical review before assignment confirmation.

Request an inspector

Need Technical Inspection in India?

Tell us what needs to be inspected.

  • Supplier location — where is the manufacturer, fabrication facility, shipyard or project site?
  • Equipment — what is being manufactured, fabricated or inspected?
  • Inspection required — welding, coating, vendor inspection or other
  • Date / duration — when is technical support required?
  • Upload documents — ITP · Specification · PO · Drawings
  • Contact — name · company · email

ITP · Specification · PO · Drawings

Not sure which inspector qualification or technical requirement applies? Send us the equipment and project scope and we can review the requirement.

Optional: ITP, specification, purchase order or drawings.

Have only the supplier location and an ITP? Start with that.

Diligence Across India's Industrial Supply Chain.

Independent technical inspection for heavy engineering facilities, equipment manufacturers, shipyards and industrial projects throughout India.