# DURGA INFRASTRUCTURE ENGINEERING PRIVATE LIMITED (DIEPL)
*Registered Address: At Jharitand, Inderwa Koderma, Giridih Road, Jharkhand - 825410*
*CIN: U43122JH2026PTC027483 | GSTIN: 20AAMCD5728M1ZF | Constitution: Private Limited Company*

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## SECTION 1: CORPORATE OVERVIEW & INTRODUCTION

### 1.1 Executive Summary
Durga Infrastructure Engineering Private Limited (DIEPL) is a professionally managed engineering, procurement, and construction contracting firm specializing in Extra-High-Voltage (EHV) substation switchyards, electrical grid networks, railway traction electrification, and associated heavy civil/mechanical works. Headquartered in Koderma, Jharkhand, we deliver high-reliability electrical grids up to 765kV capacity under strict technical compliance.

### 1.2 The Promoters & Management Strength
DIEPL is backed by seasoned promoters and technical professionals with extensive industry experience and exposure. The promoters and technical management of Durga Infrastructure Engineering Pvt Ltd possess decades of collective industry experience through successful execution of EHV transmission lines, substations, railway electrification, and high-tension utility projects under associated organizations, including **Durga Construction Company (DCC)**.

* **Experienced Promoter Backing**: The promoters have been actively associated with the execution of various heavy infrastructure works through ongoing industry operations and associated organizations, ensuring seamless technical capability, robust capital assets, and established client relationships.
* **Core Execution Mandate**: DIEPL is firmly committed to delivering quality-driven, safe, and timely infrastructure solutions across the power and construction sectors, raising national benchmarks for contracting efficiency.

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## SECTION 2: CORE AREAS OF TECHNICAL EXPERTISE

DIEPL operates across five primary engineering domains, with certified credentials and experienced project crews:

1. **EHV Substation & Switchyard Works**:
   * Rigging, mechanical assembly, and precision alignment of EHV utility power transformers and shunt reactors up to 765kV.
   * Erection of outdoor Air-Insulated Switchyards (AIS) and Gas-Insulated Switchyards (GIS) structures, circuit breakers, Current/Potential Transformers (CT/PT), busbars, and insulator alignments.
2. **EHV Transmission Line Works**:
   * Complete tower foundations casting, structural steel tower assembly, tower rigging, conductor stringing, sagging, and line terminations up to 765kV systems.
3. **Structure Erection & Heavy Rigging**:
   * Heavy mechanical staging and erection of structural steel columns, gantry beams, lightning protection towers, and switchyard gantries under tight site tolerances.
4. **Civil & Electrical Grid Infrastructure**:
   * Fabrication and welding of sub-1 ohm switchyard safety grounding grids (MS earthing mats).
   * Civil works including transformer RCC plinths, cable trench networks, firewall masonry barriers, and utility control rooms.
5. **Cabling, Glanding & Control Panel Terminations**:
   * Laying, dressing, and routing of armored EHV Power, LT, and multi-core control cables.
   * High-reliability control cable glanding, wire tagging, and control room CRP Panel terminations.

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## SECTION 3: VISION, MISSION, & OPERATIONS PHILOSOPHY

### 3.1 Corporate Vision
To establish Durga Infrastructure Engineering Private Limited as a national benchmark in EHV electrical contracting, recognized for executing complex substation, transmission, and railway traction projects safely, reliably, and within record timelines.

### 3.2 Corporate Mission
To engineer and deliver utility-grade power infrastructure that meets international quality standards. We aim to continually raise the bar for safety and technical precision while contributing to the nation's high-voltage energy security.

### 3.3 The Four Pillars of Execution
Every project executed by DIEPL is guided by four core operational principles:
* **Quality Work**: Delivering robust, grid-synchronized electrical networks built strictly to approved raw materials and wire gauge specifications.
* **Timely Completion**: Rapid crew mobilization and flawless critical-path site management to ensure project handovers within strict client timelines.
* **Safety First**: Maintaining a strict zero-harm culture with daily toolbox safety briefings, comprehensive risk audits, and absolute compliance with QHSE standards.
* **Client Satisfaction**: Nurturing long-term relationships through absolute business transparency, ethical cost estimations, and premium execution quality.

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## SECTION 4: HEALTH, SAFETY, & SOCIAL RESPONSIBILITY

### 4.1 QHSE Policy Statement
At DIEPL, Quality, Occupational Health, Safety, and Environmental protection are fundamental pillars integral to our core business of construction management. In pursuit of site excellence and worker protection, DIEPL is rigorously committed to:
* Implementing comprehensive accident prevention protocols and mandatory Personal Protective Equipment (PPE) compliance.
* Organizing daily site safety toolbox briefings and electrical risk drills prior to every EHV shift.
* Minimizing ecological footprints by practicing sustainable soil excavation, waste control, and minimal vegetation clearance.

### 4.2 Corporate Social Responsibility (CSR)
We believe in fostering a comprehensive culture of caring and mutual trust. DIEPL adds measurable value to the community by:
* Training local youth in technical rigging, steel welding, and utility-grade wireman skills.
* Assisting in national disaster recovery projects and electrical grid reconstruction during emergencies.
* Focus on environmental preservation and native tree plantation near switchyard boundaries.

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## SECTION 5: TECHNICAL INVENTORY & POWER EQUIPMENT

To support rapid mobilization and high-integrity execution, DIEPL maintains an extensive, privately owned inventory of heavy machinery, testing gear, and substation tools:

### 5.1 Privately Owned Fleet & Construction Machinery
| # | Tool & Equipment Description | Quantity | Operational Purpose |
|---|---|---|---|
| 1 | **Hydraulic Mobile Crane** (14T Cap, 15.5M Boom Height) | 1 Nos | Heavy EHV gantry rigging & transformer placement |
| 2 | **3DX JCB Excavator Machine** | 1 Nos | Substation civil foundations & trench excavation |
| 3 | **25KVA Silent D.G. Set** (Cummins Make) | 1 Nos | Auxiliary site power and field execution backup |
| 4 | **Welding Machines / Rectifiers** (Heavy Duty) | 10 Nos | Grounding grid MS mats & portal joints welding |
| 5 | **Hydraulic Pipe Bending Machines** (up to 6” Sizes) | 2 Nos | Precision conduit & steel piping fabrication |
| 6 | **Crimping Tools Hydraulic** (up to 1000 Sqmm) & Mechanical | 4 Nos | Power cable terminal lugs compression |
| 7 | **Meggers** (500V / 1KV / 5KV Insulation Testers) | 2 Nos | Cable dielectric and insulation resistance testing |
| 8 | **Calibrated Earth Resistance Testers** | 1 Nos | Switchyard grounding grid low-resistance audit |
| 9 | **Heavy Cable Jacks & Shaft Sets** | 3 Sets | EHV & LT conductor cable drum setup & unwinding |
| 10| **Oil Filtration Plant** (6000 LPH Capacity) | 1 Nos | Transformer oil degassing & dielectric conditioning |
| 11| **EHV Substation Erection Tool Kits** (11k-765kV) | 2 Sets | Specialized switchyard busbar & isolator erection |
| 12| **Steel Bar Cutting & Bending Machines** (Automatic) | 2 Nos | Plinths & foundations rebar cage fabrication |
| 13| **Chain Pulley Blocks & Heavy-Duty D-Shackles** | 4 Nos | Heavy lifting & mechanical assembly suspension |
| 14| **Drilling Machines** (Standard & pedestal Drill systems) | 9 Nos | structural column bolting & structural steel fabrication |
| 15| **Light Logistics Supervision Vehicles (Cars)** | 4 Nos | Site engineers mobilization & crew transport |
| 16| **Field Crew Mobilization Motorcycles** | 6 Nos | Fast on-site tools delivery & site supervision |
| 17| **Other Misc. Hand Tools** (Multimeters, combination sets) | Lot | General site electrical and mechanical execution |

### 5.2 Laboratory Testing & Commissioning Assets
*In addition to our privately owned physical inventory, we maintain strong strategic associations with leading certified testing laboratories in India for carrying out high-voltage commissioning audits with all of the following calibrated instruments:*
* **Primary Injection Kits** (CT/PT & relay synchronization checks)
* **Secondary Injection Kit** (Relay test kit and micro-controller calibrations)
* **Timer** (Close, Open & Trip duration logging for EHV breakers)
* **Variac & Rheostat** (Variable AC voltage injection and diagnostics support)
* **Megger up to 10KV** (Utility-grade insulation resistance testing)
* **Micro Ohm Meter** (Breaker contact resistance audit)
* **Industrial Multimeters & Tong Testers**

### 5.3 Technical Manpower Deployed Strength
*DIEPL operates with a sustained technical force of **304 safety-certified professionals** deployed across national construction sectors:*
* **B.Tech & Diploma Engineers**: 4 Nos.
* **Certified Safety Officers**: 3 Nos.
* **Senior Substation Supervisors**: 6 Nos.
* **General Site Supervisors**: 10 Nos.
* **Licensed Electricians & Wiremen**: 28 Nos.
* **Experienced Structural Welders**: 21 Nos.
* **Mechanical & Structural Fitters**: 92 Nos.
* **Heavy Riggers (Height Work Specialists)**: 30 Nos.
* **Skilled Technical Helpers & Ground Crews**: 110 Nos.

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## SECTION 6: CONTRACTS BOARD & RECORD SCALE

DIEPL's track record is structured to reflect direct corporate projects alongside our associated promoters' legacy management experience under DCC:

### 6.1 Direct Infrastructure Projects (DIEPL)
*Contracts directly awarded to and under active execution by Durga Infrastructure Engineering Private Limited:*

* **Client**: **TEECL / AESL (Adani Energy Solutions Limited)**
  * **Scope**: 400/220/132KV Rewa (New), Amarpatan Substation (New), and Bay Extension complete Erection & Electrical works. Complete structural steel gantry assembly, outdoor equipment layouting, CRP panel terminations, and HT cabling synchronization.
  * **Location**: Rewa, Madhya Pradesh
  * **Year / Status**: 2026 | **Ongoing / Under Execution**
  * **Contract Value**: **Rs. 9,50,00,000 (Rs. 9.50 Crore)**

### 6.2 Legacy & Associated Management Experience
*Contracts successfully executed under our associated organization and technical management experience (Durga Construction Company - DCC) from 2012 to 2025:*

| # | Client Organization | Scope of Project & Voltages | Year | Status | Contract Value |
|---|---|---|---|---|---|
| 1 | **BBS Construction** | 33/11KV Distribution Line Maintenance for UPPTCL (Anpara) | 2012 | Completed | **Rs. 8,50,000** |
| 2 | **Shyam Electricals** | 33/11KV Distribution Line Maintenance for UPPTCL (Anpara) | 2013 | Completed | **Rs. 11,50,000** |
| 3 | **Alstom T&D India Ltd.** | 765/400KV Outdoor Switchyard Service Works for UPPTCL | 2013 | Completed | **Rs. 45,00,000** |
| 4 | **GE T&D India Limited** | 765/400KV Switchyard Main Grid Earthing Grounding Mats | 2014 | Completed | **Rs. 75,00,000** |
| 5 | **GE T&D India Limited** | 400/220KV Switchyard mechanical erection for NTPC Singrauli | 2013 | Completed | **Rs. 35,00,000** |
| 6 | **KEC International Ltd.** | Civil & Electrical RE works up to T&C, TSS, portal erection | 2017 | Completed | **Rs. 62,00,000** |
| 7 | **KEC International Ltd.** | Civil & Electrical RE works up to T&C, TSS, portal erection | 2018 | Completed | **Rs. 28,00,000** |
| 8 | **Gepdec Infratech Ltd.** | 132/33KV Substation Renovation for JUSNL (Jamshedpur) | 2019 | Completed | **Rs. 25,00,000** |
| 9 | **Gepdec Infratech Ltd.** | 400/220/132KV AIS Substation Outdoor structural steel erection | 2021 | Completed | **Rs. 1,00,00,000** |
| 10| **Gepdec Infratech Ltd.** | 220/110KV Substation Renovation & Commissioning for GED Goa | 2022 | Completed | **Rs. 75,00,000** |
| 11| **ARSS Infra Projects** | Civil & Electrical RVNL TSS and portal erection works (Odisha) | 2022 | Completed | **Rs. 1,15,00,000** |
| 12| **TATA PROJECTS LTD.** | Civil & Electrical RE works up to T&C at CLW & SOT (U.P) | 2023 | Completed | **Rs. 1,50,00,000** |
| 13| **SCPL (ARSS) / Railways** | 2 x25 KV OHE & PSI Civil/Electrical DFCC Railways (Jharkhand)| 2024 | Ongoing | **Rs. 5,50,00,000** |
| 14| **SCPL (ARSS) / Railways** | 1 x25 KV OHE Civil/Electrical RE Railways Project (Odisha) | 2025 | Ongoing | **Rs. 1,10,00,000** |
| 15| **Gepdec Infratech / SAIL** | 220/33KV Complete Switchyard Erection for SAIL Iron Mines | 2025 | Ongoing | **Rs. 90,00,000** |

*\*Note: Legacy and associated experience credentials represent contracts successfully executed under our associated organization and technical management experience (Durga Construction Company - DCC).*

### 6.3 Detailed Projects Catalog (One-by-One Project Analysis)

*Technical specifications, execution profiles, locations, and descriptions of all 16 projects:*

#### Project 1: 400/220/132KV Switchyard & Bay Erection (AESL Flagship)
* **Client / Sponsor Organization**: TEECL / Adani Energy Solutions Limited (AESL)
* **Contract Valuation**: Rs. 9,50,00,000 (9.50 Crore / 950 Lakhs)
* **Year of Execution**: 2026
* **Execution Status**: Ongoing / Under Execution
* **Project Site Location**: Rewa & Amarpatan, Madhya Pradesh
* **Execution Entity**: Durga Infrastructure Engineering Private Limited (DIEPL Direct)
* **Engineering Scope & Description**: Full EPC-associated electrical and mechanical execution for a massive 400/220/132KV greenfield substation and bay extensions. Scope includes precision rigging, levelling, and alignment of heavy EHV utility power transformers and shunt reactors; mechanical erection of outdoor Air-Insulated Switchyard (AIS) gantry portals, support steel columns, EHV circuit breakers, Current/Potential Transformers (CT/PT), and isolators; control room CRP Panel terminations; and layout of multi-core control and power cabling.

#### Project 2: 2 x25 KV OHE & PSI Civil/Electrical DFCC Railways Project
* **Client / Sponsor Organization**: SCPL (ARSS) / Indian Railways
* **Contract Valuation**: Rs. 5,50,00,000 (5.50 Crore / 550 Lakhs)
* **Year of Execution**: 2024
* **Execution Status**: Ongoing / Under Execution
* **Project Site Location**: Gomho to Pradhankhanta, Jharkhand
* **Execution Entity**: Durga Construction Company (DCC Legacy)
* **Engineering Scope & Description**: Extensive high-voltage traction electrification works for the Dedicated Freight Corridor Corporation (DFCC) grid. Scope covers excavation and casting of heavy-duty RCC foundations, rigging and structural steel erection of gantry portals and masts, laying sand-cushioned cable trenches for 2x25kV power cables, and installation of Power Supply Installations (PSI) under strict safety guidelines.

#### Project 3: 1 x25 KV OHE Civil/Electrical RE Railways Project
* **Client / Sponsor Organization**: SCPL (ARSS) / Indian Railways
* **Contract Valuation**: Rs. 1,10,00,000 (1.10 Crore / 110 Lakhs)
* **Year of Execution**: 2025
* **Execution Status**: Ongoing / Under Execution
* **Project Site Location**: Daspalla to Puranakatak, Odisha
* **Execution Entity**: Durga Construction Company (DCC Legacy)
* **Engineering Scope & Description**: High-integrity overhead electrification (OHE) works under tight site limits and active tracks. Execution covers precision manual and machine foundation casting, portal structure assembly, conductor stringing, automatic tensioning device (ATD) installations, and strict pre-commissioning alignment tests.

#### Project 4: 220/33KV Switchyard Erection for SAIL Iron Mines
* **Client / Sponsor Organization**: Gepdec Infratech Ltd. / SAIL
* **Contract Valuation**: Rs. 90,00,000 (90 Lakhs)
* **Year of Execution**: 2025
* **Execution Status**: Ongoing / Under Execution
* **Project Site Location**: Taldih, Odisha
* **Execution Entity**: Durga Construction Company (DCC Legacy)
* **Engineering Scope & Description**: Specialized switchyard erection and structural rigging to power heavy-duty industrial mining setups. Scope covers mechanical staging, gantry beam rigging, isolator alignment, Current/Potential Transformer placement, layout of control cabling runs, and fabrication of sub-1 ohm grounding grids (MS earthing mats).

#### Project 5: Civil & Electrical Works for Railway RE (TSS, Portal)
* **Client / Sponsor Organization**: TATA PROJECTS LTD. / Indian Railways
* **Contract Valuation**: Rs. 1,50,00,000 (1.50 Crore / 150 Lakhs)
* **Year of Execution**: 2023
* **Execution Status**: Completed
* **Project Site Location**: CLW & SOT, Uttar Pradesh
* **Execution Entity**: Durga Construction Company (DCC Legacy)
* **Engineering Scope & Description**: Successful execution of complex railway traction electrification works up to testing & commissioning. Scope covered construction of heavy concrete foundations for gantries, structure rigging and erection of portal frames, installation of Traction Substation (TSS) switchgear, laying multi-core control cables, and performing CRP control panel terminations under strict regulatory audits.

#### Project 6: Civil & Electrical Works for RVNL Projects (TSS, SP/SSP)
* **Client / Sponsor Organization**: ARSS Infrastructure Projects Ltd. / RVNL
* **Contract Valuation**: Rs. 1,15,00,000 (1.15 Crore / 115 Lakhs)
* **Year of Execution**: 2022
* **Execution Status**: Completed
* **Project Site Location**: Sukinda, Odisha
* **Execution Entity**: Durga Construction Company (DCC Legacy)
* **Engineering Scope & Description**: Comprehensive electrical and civil works for Rail Vikas Nigam Limited traction substations. Scope included structural steel gantry assembly, outdoor equipment bay alignments, safety grounding mats layouting and lap welding, laying power control cabling in sand-cushioned cable trenches, and executing high-reliability terminations.

#### Project 7: 220/110KV Substation Renovation & Grid Commissioning
* **Client / Sponsor Organization**: Gepdec Infratech Ltd. / GED Goa
* **Contract Valuation**: Rs. 75,00,000 (75 Lakhs)
* **Year of Execution**: 2022
* **Execution Status**: Completed
* **Project Site Location**: Ponda / Thivim, Goa
* **Execution Entity**: Durga Construction Company (DCC Legacy)
* **Engineering Scope & Description**: Substation rejuvenation and system rehabilitation under active live grid parameters. Project covered the mechanical dismantling of legacy support columns and isolators, precision rigging and erection of new gantry steel structures, EHV breaker swaps, laying control cable networks, and testing/commissioning support for the Goa Electricity Department.

#### Project 8: 400/220/132KV AIS Substation Outdoor Structural Erection
* **Client / Sponsor Organization**: Gepdec Infratech Ltd. / Jaunpur
* **Contract Valuation**: Rs. 1,00,00,000 (1.00 Crore / 100 Lakhs)
* **Year of Execution**: 2021
* **Execution Status**: Completed
* **Project Site Location**: Jaunpur, Uttar Pradesh
* **Execution Entity**: Durga Construction Company (DCC Legacy)
* **Engineering Scope & Description**: High-voltage outdoor switchyard structural assembly and EHV equipment installation. Project scope included the mechanical staging, erection, and millimetric leveling of EHV support structural columns, outdoor isolator post alignments, circuit breaker riggings, lightning protection masts, and laying multi-core control cable lines.

#### Project 9: 132/33KV Substation Renovation for JUSNL
* **Client / Sponsor Organization**: Gepdec Infratech Ltd. / JUSNL
* **Contract Valuation**: Rs. 25,00,000 (25 Lakhs)
* **Year of Execution**: 2019
* **Execution Status**: Completed
* **Project Site Location**: Jamshedpur, Jharkhand
* **Execution Entity**: Durga Construction Company (DCC Legacy)
* **Engineering Scope & Description**: Critical renovation and repair of active substation assets for Jharkhand Urja Sancharan Nigam Limited. Scope covered electrical wiring retrofitting, CRP control panel dressing, replacement of worn outdoor disconnect switches, earthing grid mat lap welding modifications, and insulator string replacements.

#### Project 10: Civil & Electrical Works for Railway RE (TSS, Portal)
* **Client / Sponsor Organization**: KEC International Ltd. / Indian Railways
* **Contract Valuation**: Rs. 28,00,000 (28 Lakhs)
* **Year of Execution**: 2018
* **Execution Status**: Completed
* **Project Site Location**: Obra, Uttar Pradesh
* **Execution Entity**: Durga Construction Company (DCC Legacy)
* **Engineering Scope & Description**: Traction substation civil excavations and electrical portal staging works. Scope covered precision rebar cage assembly and concrete foundation casting for heavy mast portals, structure assembly of galvanized steel portal frames, and auxiliary electrical earthing mats welding support up to testing.

#### Project 11: Civil & Electrical Works for Railway RE (TSS, Portal)
* **Client / Sponsor Organization**: KEC International Ltd. / Indian Railways
* **Contract Valuation**: Rs. 62,00,000 (62 Lakhs)
* **Year of Execution**: 2017
* **Execution Status**: Completed
* **Project Site Location**: Nainpur, Madhya Pradesh
* **Execution Entity**: Durga Construction Company (DCC Legacy)
* **Engineering Scope & Description**: Traction electrification substation structural staging and outdoor civil/electrical works. Project scope covered the complete foundation casting and mechanical assembly of traction substation gantry masts, OHE steel support columns, safety earth risers placement, and outdoor power cabling connections.

#### Project 12: 765KV/400KV Switchyard Main Grid Earthing Grounding Mats
* **Client / Sponsor Organization**: GE T&D India Limited / UPPTCL
* **Contract Valuation**: Rs. 75,00,000 (75 Lakhs)
* **Year of Execution**: 2014
* **Execution Status**: Completed
* **Project Site Location**: Anpara-D, Sonebhadra UP East
* **Execution Entity**: Durga Construction Company (DCC Legacy)
* **Engineering Scope & Description**: Fabrication of a robust safety grounding network for an ultra-high-voltage 765kV outdoor switchyard. Scope included the mechanical excavation of trenches, layouting massive MS flats, high-integrity lap welding of intersections, and installation of grounding risers/chambers to secure a low grid-to-earth resistance strictly below 0.5 ohms.

#### Project 13: 400KV/220KV Switchyard Mechanical Erection for NTPC
* **Client / Sponsor Organization**: GE T&D India Limited / NTPC
* **Contract Valuation**: Rs. 35,00,000 (35 Lakhs)
* **Year of Execution**: 2013
* **Execution Status**: Completed
* **Project Site Location**: Singrauli, Madhya Pradesh
* **Execution Entity**: Durga Construction Company (DCC Legacy)
* **Engineering Scope & Description**: Outdoor substation switchyard mechanical structure riggings and EHV equipment installation. Project scope covered the structural assembly and placement of galvanized steel column portals, gantry beams alignment, EHV circuit breakers leveling, isolators setting, and dielectric control panel cablings.

#### Project 14: 765KV/400KV Outdoor Switchyard Service Works
* **Client / Sponsor Organization**: Alstom T&D India Ltd. / UPPTCL
* **Contract Valuation**: Rs. 45,00,000 (45 Lakhs)
* **Year of Execution**: 2013
* **Execution Status**: Completed
* **Project Site Location**: Anpara-D, Sonebhadra UP East
* **Execution Entity**: Durga Construction Company (DCC Legacy)
* **Engineering Scope & Description**: Extra-High-Voltage outdoor switchyard service and erection assistance. Work covered mechanical alignment and leveling of EHV galvanized steel columns, outdoor disconnect switch isolators adjusting, CT/PT alignments, lightning protection masts erection, and control room cables laying.

#### Project 15: 33/11KV Distribution Line Maintenance for UPPTCL
* **Client / Sponsor Organization**: Shyam Electricals / UPPTCL
* **Contract Valuation**: Rs. 11,50,000 (11.5 Lakhs)
* **Year of Execution**: 2013
* **Execution Status**: Completed
* **Project Site Location**: Anpara Division, Uttar Pradesh
* **Execution Entity**: Durga Construction Company (DCC Legacy)
* **Engineering Scope & Description**: Scheduled utility distribution line maintenance and electrical renovations. Scope covered the physical replacing of damaged post insulators, structural cross-arm repairs, sag adjusting on conductors, security earthing welds, and auxiliary bay terminations.

#### Project 16: 33/11KV Distribution Line Maintenance for UPPTCL
* **Client / Sponsor Organization**: BBS Construction / UPPTCL
* **Contract Valuation**: Rs. 8,50,000 (8.5 Lakhs)
* **Year of Execution**: 2012
* **Execution Status**: Completed
* **Project Site Location**: Anpara Division, Uttar Pradesh
* **Execution Entity**: Durga Construction Company (DCC Legacy)
* **Engineering Scope & Description**: Pioneering distribution maintenance works. Execution scope covered localized tree clearance, overhead structural cross-arm replacements, insulator replacements, grounding mats repairs, and low-tension terminal alignments.

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## SECTION 7: KEY TECHNICAL CASE STUDIES

### Case Study 1: EHV Substation Erection & Heavy Rigging
* **Substation Erection Specialty (DCC/DIEPL)**
* **Technical Challenge**: Erection of massive structural galvanized steel gantries, high-voltage isolators, circuit breakers, CRP panels, and heavy utility power transformers within millimetric tolerances under restricted switchyard spatial margins.
* **Solution**: Developed a critical-path rigging timeline utilizing high-capacity mobile crane teams to execute secure gantry structural assemblies. Precision mechanical leveling and post alignment ensured that final gantry margins strictly satisfied the rigid tolerances requested by clients GE T&D and Gepdec Infratech, with zero safety incidents.

### Case Study 2: Railway Traction Grounding Matrix & Cable lays
* **Railway Electrification Specialty (DCC/DIEPL)**
* **Technical Challenge**: Laying and dressing over 10,000 meters of control and power cabling, executing high-integrity CRP control room panel terminations, and fabricating switchyard safety grounding MS earthing mats to achieve low grid resistance strictly below 0.5 ohms.
* **Solution**: Excavated and laid sand-cushioned cable trenches, performed expert multi-core glanding/terminations, and lap-welded massive MS flat grounding grids. Deployed highly calibrated diagnostics gear (Primary & Secondary injection kits, timers, variacs) to deliver a synchronized traction substation fully certified by state railway inspectors.

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## SECTION 8: CORPORATE CONTACT & REGISTERED CHANNELS

For immediate inquiries regarding tenders, contract pricing, or technical submittals, reach out to our executive desk or registered registry:

* **Corporate Registry Identification (CIN)**: U43122JH2026PTC027483
* **National Tax Registration (GSTIN)**: 20AAMCD5728M1ZF
* **Head Office Address**: At Jharitand, Inderwa Koderma, Giridih Road, Koderma, Jharkhand - 825410
* **Official Corporate Desk Email**: [durgainfra1@gmail.com](mailto:durgainfra1@gmail.com)
* **Executive Call Lines (Priority Order)**:
  1. **Priority 1 (Substation Desk)**: +91 70071 16776
  2. **Priority 2 (OHE Traction Desk)**: +91 82991 21733
  3. **Priority 3 (CEO Office)**: +91 94156 76825
* **WhatsApp Active Support Channels**:
  * **Primary Desk**: +91 94528 10282
  * **Project Communication**: +91 94521 80282
* **Live Corporate Website**: [https://durga-infrastructure.pages.dev](https://durga-infrastructure.pages.dev)