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Power Transmission & Grid

Towers, conductors, transformers, HVDC, smart meters and the utilities that own India's grid

From publicly available information

What this is

  • Equipment makers (transformers, switchgear, HVDC) hold scarce capacity and pricing power.
  • Line EPC firms have record order books but thin margins; execution decides returns.
  • Utilities and InvITs earn 35-year regulated or bid-fixed tariffs: steady but rate-sensitive.

Why now

  • The grid plan needs ~₹9.15L Cr of spend by FY32 to connect 500 GW of non-fossil capacity.
  • 6,108 ckm of lines added in H1 FY27, more than double H1 FY26 (CEA data).
  • Transformers are the bottleneck; two ±800 kV HVDC links (2024, Sep 2026) are in order books.

What to watch

Major areas

The map groups the anatomy into these areas before you drop into individual components.

Transmission utilities

They own and run the grid: utilities and InvITs that win projects under tariff-based bidding or regulated returns, buy the towers, conductors and transformers, and earn a fixed annual tariff for 35 years once lines are charged.

Power Grid Corporation of India

Listed

State transmission utility owning most of India's inter-state grid; winner of the largest share of TBCB projects (also in Nifty 50)

Adani Energy Solutions

Listed

India's largest private transmission company, a Mumbai discom and an AMISP smart-meter business

Tata Power

Listed

Integrated power company with Mumbai transmission, the Powerlinks JV, TBCB wins and Odisha/Delhi discoms (also in energy, solar and EV sectors)

IndiGrid (India Grid Trust)

Listed

India's first power-transmission InvIT, sponsored by KKR, owning inter-state lines, substations, solar and battery assets

PowerGrid Infrastructure Investment Trust

Listed

POWERGRID-sponsored InvIT owning five inter-state transmission projects

Resonia (formerly Sterlite Power's transmission business)

Unlisted

Unlisted private transmission developer that builds TBCB projects and sells finished ones to InvITs

Potential bottlenecks

Companies in this theme

49 companies, 44 listed. The 6 transmission utilities are listed above.

KEC International

Listed

RPG group EPC major and one of the world's largest transmission-tower builders; T&D is about three-fifths of its order book, alongside civil, railways and cables

Company page →

Kalpataru Projects International

Listed

EPC group (merged with JMC) with T&D as its largest business, plus buildings, water, railways and oil & gas; owns Linjemontage (Sweden) and Fasttel (Brazil)

Company page →

Transrail Lighting

Listed

Transmission EPC company that also makes its own towers, conductors and poles; listed in Dec 2024

Company page →

Larsen & Toubro

Listed

India's largest EPC group; its Power Transmission & Distribution business builds substations, lines and grid projects in India and the Gulf (also in the energy sector for generation EPC)

Company page →

Skipper

Listed

Kolkata-based maker of transmission towers, monopoles and telecom structures that also does T&D EPC and runs a PVC-pipe business

Company page →

Bajel Projects

Listed

Bajaj group's power transmission and distribution EPC company, demerged from Bajaj Electricals in 2023, with its own tower plant

Company page →

Apar Industries

Listed

India's largest conductor maker and a major cable and specialty-oil company; makes HTLS, copper and OPGW conductors and sells heavily overseas (also in data-centre and solar sectors)

Company page →

Sterlite Electric (formerly Sterlite Power's products business)

Unlisted

Unlisted maker of overhead conductors, OPGW and EHV cables, split from the Resonia transmission developer in 2025

Gupta Power Infrastructure

Unlisted

Unlisted Odisha-based maker of conductors, cables and wires

Diamond Power Infrastructure

Listed

Gujarat conductor and power-cable maker revived after insolvency by the GSEC group

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Karamtara Engineering

Listed

Maker of transmission-line hardware, fasteners and tower parts, and of solar mounting structures (also in the energy and solar sectors)

Company page →

KEI Industries

Listed

Cable maker with one of India's largest EHV (up to 400 kV) cable businesses, plus HT/LT cable and wires (also in real estate and data-centre sectors)

Company page →

Polycab India

Listed

India's largest wires and cables maker, expanding into EHV cable and taking power-distribution and BharatNet EPC work (also in real estate and data-centre sectors)

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Universal Cables

Listed

MP Birla group maker of EHV and HV power cables (up to 400 kV) and capacitors, Satna (MP)

Company page →

Genus Power Infrastructures

Listed

India's largest smart-meter maker and an AMISP for discoms under RDSS (AMISP arm co-owned with GIC)

Company page →

HPL Electric & Power

Listed

Meter and switchgear maker supplying smart meters to AMISPs and discoms, plus lighting and wires

Company page →

Techno Electric & Engineering

Listed

Substation and transmission EPC company that became a smart-meter AMISP and is building data centres

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IntelliSmart Infrastructure

Unlisted

Unlisted AMISP joint venture of EESL and NIIF, among the largest smart-meter rollouts in India

Hitachi Energy India

Listed

Indian arm of Hitachi Energy (ex-ABB Power Grids): power transformers, HVDC, GIS, grid automation and power quality - the broadest grid-equipment maker in India (also in the data-centre sector)

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GE Vernova T&D India

Listed

Indian arm of GE Vernova's grid business: power transformers, GIS, HVDC and grid automation

Company page →

Zetwerk Manufacturing Businesses

Listed

Contract manufacturer making transformers and power equipment alongside solar structures (listed Oct 2026; also in solar)

Company page →

Transformers & Rectifiers (India)

Listed

Ahmedabad maker of power transformers up to 1,200 kV, furnace and rectifier transformers and reactors (also in the data-centre sector)

Company page →

Siemens Energy India

Listed

Siemens Energy's Indian arm, demerged from Siemens Ltd and listed in Jun 2025: power transformers, HVDC, switchgear and turbines (also in the energy sector)

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CG Power and Industrial Solutions

Listed

Murugappa group maker of power transformers, switchgear and industrial motors, also building an OSAT chip plant (also in railways, data-centre and semiconductor sectors)

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Voltamp Transformers

Listed

Vadodara maker of power and distribution transformers up to 220 kV, mostly for industrial and utility customers

Company page →

Shilchar Technologies

Listed

Gujarat maker of power and distribution transformers with a large export business

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Atlanta Electricals

Listed

Gujarat (Anand) maker of power, auto and inverter-duty transformers for utilities and renewable plants; listed Sep 2025

Company page →

Mangal Electrical Industries

Listed

Jaipur company that processes CRGO steel into transformer laminations and cores, and makes transformers and does substation EPC; listed Aug 2025

Company page →

Quality Power Electrical Equipments

Listed

Sangli maker of reactors, HVDC and FACTS components and transformers for grid operators worldwide; listed Feb 2025

Company page →

Bharat Heavy Electricals

Listed

State engineering major; HVDC consortium partner with Hitachi Energy, plus power transformers and substations (also in energy, railways and naval sectors)

Company page →

Siemens

Listed

Siemens Ltd after the 2025 energy demerger: smart infrastructure (GIS, switchgear, substation automation), digital industries and mobility (also in the railways sector)

Company page →

ABB India

Listed

Medium- and low-voltage switchgear, distribution automation, drives and robotics (ABB's high-voltage grid business is now Hitachi Energy) (also in data-centre and railways sectors)

Company page →

Schneider Electric Infrastructure

Listed

Schneider's listed Indian arm making distribution transformers, MV switchgear and grid automation (also in the data-centre sector)

Company page →

Hindalco Industries

Listed

Aditya Birla aluminium and copper major: supplies aluminium rod for conductors and copper rod for windings and cables (also in Nifty 50, electronics and critical-minerals sectors)

Company page →

Vedanta Aluminium Metal

Listed

India's largest aluminium producer (Jharsuguda, BALCO), demerged from Vedanta and listed on 15 Jun 2026; a major supplier of aluminium wire rod to conductor makers

Company page →

National Aluminium Company (NALCO)

Listed

State aluminium and alumina producer selling wire rods and EC-grade metal to conductor makers (also in the critical-minerals sector)

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Hindustan Copper

Listed

State-owned, India's only integrated copper miner - copper for windings and cables starts here (also in the critical-minerals sector)

Company page →

JSW Steel

Listed

Steel major whose 50:50 JV with JFE Steel (JSW JFE Electrical Steel) is India's only CRGO producer (also in Nifty 50 and real-estate sectors)

Company page →

Indian Energy Exchange

Listed

India's largest power exchange, with the dominant share of day-ahead, real-time and green power trading

Company page →

PTC India

Listed

India's largest power trader, buying and selling power across states and with neighbouring countries

Company page →

REC

Listed

State lender to power utilities and a nodal agency for RDSS; its REC Power Development & Consultancy arm runs TBCB bids and incubates project SPVs

Company page →

Power Finance Corporation

Listed

State power lender and REC's parent; its PFC Consulting arm is a bid-process coordinator for ISTS TBCB projects

Company page →

Grid Controller of India (Grid-India)

Unlisted

Unlisted state system operator that schedules and dispatches power on the national grid; proposed market-coupling operator

Common questions

Which listed companies are in India's Power Transmission & Grid supply chain?

NextResearch maps 44 listed companies across 10 layers of the Power Transmission & Grid supply chain. The largest with high exposure, by market cap as of 6 Nov 2026: Power Grid Corporation of India (₹2.42L Cr); Adani Energy Solutions (₹1.78L Cr); Hitachi Energy India (₹1.24L Cr); GE Vernova T&D India (₹1.03L Cr); and Siemens Energy India (₹99,971 Cr).

What are the layers of the Power Transmission & Grid supply chain?

10 layers: HV & EHV underground cables; Conductors & line hardware; Towers & line EPC; Transmission utilities & InvITs; Power markets & grid finance; Smart meters & distribution; Power transformers & reactors; HVDC & FACTS; GIS, switchgear & protection; and CRGO, copper & aluminium.

Who are the end players in Power Transmission & Grid?

In the Transmission utilities & InvITs layer: Power Grid Corporation of India, Adani Energy Solutions, Tata Power, IndiGrid (India Grid Trust), PowerGrid Infrastructure Investment Trust and Resonia (formerly Sterlite Power's transmission business) (not NSE-listed).

What are the bottlenecks in India's Power Transmission & Grid supply chain?

HV & EHV underground cables: Few vertical continuous-vulcanisation (VCV) lines for 220-400 kV in India. Conductors & line hardware: HTLS and composite-core technology is held by few makers. Towers & line EPC: Right-of-way: farmers' compensation disputes and forest clearances delay many ISTS lines. Transmission utilities & InvITs: Equipment lead times (transformers, HVDC) delaying commissioning. More by layer on this page.