01 · Approvals
Statutory & Utility Clearances
Complete liaison support for drawing approvals, test reports, and formal charging sanctions with the Electrical Inspectorate and supply utilities.
Industrial & Commercial
Electrical Infrastructure,
Engineered for
Reliability.
From 11kV HT substations and heavy industrial distribution panels to municipal high-mast lighting, smart AV control rooms, and heavy pump systems. Delivered on schedule with zero safety compromise.
Turnkey EPC Contracting
Bureau of Indian Standards (IS)
Certified OEM Switchgear
11kV Substation Specialist
Cast Resin & Oil Transformers
High-Mast & Facade Lighting
Highways, Stadiums & Facades
Industrial Distribution
PCC, MCC & Busduct Erection
Trusted by Leading Developers, Industrial Plants & Infrastructure Authorities
Tata Power
Power Distribution & Grid
L&T Construction
Infrastructure & Heavy EPC
Godrej Properties
Commercial & Industrial Complexes
K Raheja Corp
Mindspace & Corporate IT Parks
CIDCO Maharashtra
Urban & Highway Lighting
LG
Lodha Group
Commercial Towers & Mixed-Use
MMRDA
Regional Infrastructure
Adani Electricity
HT Substations & Network
Reliance Infrastructure
Power & Heavy Electrification
Shapoorji Pallonji
Engineering & Turnkey Projects
Oberoi Realty
Commercial Towers & Hospitality
Mahindra Lifespaces
Industrial & Logistics Parks
Tata Power
Power Distribution & Grid
L&T Construction
Infrastructure & Heavy EPC
Godrej Properties
Commercial & Industrial Complexes
K Raheja Corp
Mindspace & Corporate IT Parks
CIDCO Maharashtra
Urban & Highway Lighting
LG
Lodha Group
Commercial Towers & Mixed-Use
MMRDA
Regional Infrastructure
AE
Adani Electricity
HT Substations & Network
Reliance Infrastructure
Power & Heavy Electrification
Shapoorji Pallonji
Engineering & Turnkey Projects
Oberoi Realty
Commercial Towers & Hospitality
Mahindra Lifespaces
Industrial & Logistics Parks
15+
Years Experience
Proven electrical & engineering contracting heritage across Western India.
350+
Projects Delivered
Substations, distribution panels, high-mast illumination, and pump works.
50+
Certified Technicians
Licensed wiremen, electrical supervisors, and safety engineers on roll.
99.8%
On-Time Commissioning
Strict milestone governance with zero statutory inspection bottlenecks.
Core Capabilities
Request Custom BOQ ↗
High-Voltage, Distribution & Control Systems Built to Last.
Every installation adheres to Bureau of Indian Standards (IS), Central Electricity Authority (CEA) guidelines, and approved single-line diagrams (SLD).
Interactive Technical Architecture
End-to-End High Voltage & Distribution Lifecycle.
Explore how Chaitra engineers seamless power transformation from the 11kV municipal grid down to shopfloor motor control and clean earth protection.
Stage 01 · Grid Intake
11kV / 22kV Supply
11,000 V
Nominal HT Grid
- Double pole DP structure
- Lightning arrestor bank
- Bi-directional metering
Incomer Active
Stage 02 · Protection
Vacuum Switchgear
25 kA / 3s
Fault Breaking SLA
- Microprocessor relays
- Earth fault protection
- CEIG charging permit
Protection Ready
Stage 03 · Step-Down
Power Transformer
1500 kVA
11kV to 415V Dual Tx
- Cast resin dry-type
- Winding RTD monitors
- Tap changer regulation
415V Stepped Down
Stage 04 · Distribution
Main PCC & Busduct
3200A
Sandwich Copper Riser
- Motorized 4-pole ACBs
- Insulation > 100 MΩ
- Harmonic filtering
Busduct Energized
Stage 05 · Utilization
Motor & Load Centers
0.99 PF
APFC Unity Factor
- VFD soft starters
- Earth grid < 1.0 Ohm
- Zero unbalance trip
High Efficiency
Engineering Excellence
Why Project Directors & Facility Heads Choose Chaitra.
We bridge the critical gap between complex electrical specifications and on-ground site execution.
01 · Approvals
02 · Turnkey
Single-Window Turnkey EPC
From initial load sanctions and Single Line Diagrams (SLD) to equipment procurement, panel manufacturing, cabling, and final load testing, you deal with a single responsible team.
03 · Safety
Zero-Compromise Safety Culture
Calibrated relay protection, arc-flash PPE, Lock-Out Tag-Out (LOTO) protocols, and mandatory work permits for all high-voltage activities.
04 · Quality
Transparent BOQ & Genuine Sourcing
Only authentic switchgear and cables from certified OEMs (Schneider Electric, ABB, Siemens, Polycab, Havells). Clear variation management with zero surprise billing.
Structured Execution
From Project Brief to Handover in 4 Methodical Steps.
Transparent stage gates ensure every technical requirement, safety clearance, and timeline is met.
Stage 01
Site Audit & Load Study
Review architectural plans, existing site conditions, connected load requirements, and utility supply voltage constraints.
Stage 02
Engineering SLD & BOQ
Prepare Single Line Diagrams, breaker coordination studies, cable route layouts, and a comprehensive, itemized bill of quantities.
Stage 03
Mobilisation & Precision Erection
Execute cable trays, transformer positioning, switchgear alignment, busduct jointing, and earth pit grid construction.
Stage 04
Testing, Clearances & Handover
Megger testing, high-pot testing, secondary injection relay calibration, statutory charging permission, and As-Built drawings handover.
Proven Experience
Browse All Projects →
Selected Reference Projects in Mumbai & Maharashtra.
Substations, high-mast illumination, industrial power distribution, and command spaces executed to verified specifications.
Frequently Asked Questions
Clear Answers to Common Project & Tender Queries.
Everything you need to know about our scope, licenses, approvals, and working arrangements.
Technical Advisory
Need a Custom Site Review?
Our senior electrical engineers review project layouts, SLDs, and tender specifications across Mumbai and Western India.
Consult Our Engineers ↗Yes. We provide complete statutory liaison services for HT substations, transformer installations, and high-voltage switchgear. This includes drawing submission, relay test report compilation, site inspection coordination, and securing the final statutory charging permission.
Our primary operating base is Greater Mumbai, Navi Mumbai, and Thane. For turnkey HT substations, industrial installations, and high-mast projects, we undertake contracts across Maharashtra, including Pune, Nashik, and the Raigad industrial corridor.
To provide a precise quotation, we typically review the project architectural layout, Single Line Diagram (SLD), connected load schedule, tender specifications, and site location. If drawings are not ready, our senior engineers can conduct an on-site technical survey to formulate the scope.
Yes. Our comprehensive AMC packages include scheduled preventive maintenance (such as infrared thermal scanning, breaker servicing, transformer oil filtration, and earth pit testing) as well as 24/7 emergency breakdown support with defined response time SLAs.
Engineering Knowledge
Browse all blogs →
Practical Notes for Procurement & Facility Teams.
Actionable guidance on electrical tenders, handover documentation, and high-voltage maintenance.
Project & Tender Enquiries
Ready to Power Your Site with Confidence?
Share your requirement, drawings, or tender reference. Our senior electrical engineers will review the brief and revert with clear technical guidance.