Capital Goods Sector in India: Order Books, Execution, and Defence

What capital goods companies do

The capital goods sector sits at the foundation of industrial economies. These companies do not make products that end consumers buy in a shop — they make the machines, systems, and equipment that other industries use to produce those consumer products, generate electricity, build infrastructure, and defend national borders.

In the Indian context, capital goods encompasses an unusually broad set of sub-industries. A boilermaker supplying equipment to a thermal power station, a company manufacturing defence electronics for the Indian Navy, a firm producing large industrial motors for steel mills, and an EPC contractor building a substation in Rajasthan all fall under the broad umbrella of capital goods. What they share is that their output is a productive asset for someone else, not a consumable.

This characteristic — that the buyer is making a long-duration investment rather than a recurring purchase — shapes almost everything about how capital goods companies operate: their revenue patterns, their working capital requirements, their margin structures, and the metrics analysts use to evaluate them.

The order-book business model

The single most distinctive feature of capital goods businesses is the order-book model. Understanding it is prerequisite to reading any capital goods company's disclosures meaningfully.

How an order is won: L1 bidding

Most large capital goods contracts in India — particularly those involving government clients like NTPC, NHAI, Indian Railways, or defence procurement — are awarded through a competitive tender process. Eligible companies submit sealed bids, and the contract is typically awarded to the company quoting the lowest price that meets technical specifications. This lowest bidder is called L1(Lowest Bidder 1). The second-lowest is L2, and so on.

The L1 mechanism creates intense price competition and compresses margins at the bidding stage. Companies that want to win volume must price aggressively. This is why EBITDA margins for capital goods EPC (Engineering, Procurement, Construction) businesses are structurally lower than, say, consumer goods companies with brand pricing power. A bid-driven business cannot mark up a product because of brand equity — the only lever is operational efficiency at execution.

Private-sector clients and repeat customers sometimes negotiate directly rather than going through a full tender, but the L1 dynamic dominates the public-sector heavy capital goods market in India.

From order win to revenue: the flow

Once a contract is won, the sequence runs as follows:

• Order inflow: The total rupee value of new contracts received in a period (quarter or year). Order inflow is the raw fuel for future revenue growth.
• Order book: The accumulated backlog of contracted work that has not yet been executed and invoiced. It equals the prior-period order book, plus new order inflow, minus revenue executed in the period. The order book is essentially a pipeline — it represents work under contract that will (barring cancellations) convert into revenue over the coming one to three years, or longer for very large projects.
• Execution: The physical work of engineering, procuring materials, manufacturing, installing, and commissioning. Revenue is recognised progressively as the project milestones are achieved and invoiced — this is called the percentage-of-completion method under Ind AS.
• Revenue recognition: Revenue hits the income statement only as work is certified and invoiced. A large order win in Q1 of a given year may contribute zero revenue in that quarter if no work has been executed yet; its contribution is spread across subsequent quarters.

This temporal separation between order win and revenue recognition is what makes order book data so analytically valuable. A company can appear to be growing revenue strongly while simultaneously burning through its backlog (order book declining). Conversely, a company may show flat revenue while quietly building a record order book that will drive significant revenue in future years.

Order book to revenue ratio

The order book-to-revenue (OB/R) ratio — also called the book-to-bill ratio — is the most basic health check for a capital goods company. It tells you how many years of revenue the current backlog represents, assuming the current execution rate continues.

A ratio of 2.5x, for example, means the company has two and a half years of work under contract at the current execution rate. Most well-managed capital goods companies historically targeted an OB/R ratio in the 2x–3x range as an indication of a comfortable pipeline without excessive stretchiness in delivery timelines. A ratio consistently below 1x historically suggested the company was having difficulty winning new orders to replenish executed work.

Key financial metrics for capital goods analysis

Order inflow and order book

As discussed, these are the primary leading indicators. Analysts typically track quarterly order inflow and compare it to the prior year quarter and to revenue in the same period. An order inflow that is consistently running ahead of revenue indicates a growing backlog; one that is consistently below revenue indicates backlog depletion.

EBITDA margin

Capital goods companies report EBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortisation) margins, but these vary significantly by business type. Pure EPC contractors — who assemble and coordinate supply chains but do relatively less in-house manufacturing — typically reported single-digit to low-teens EBITDA margins. Companies with a higher proportion of proprietary-product manufacturing (like industrial drives, switchgear, or specialised defence electronics) historically reported higher margins because the product differentiation allowed better pricing.

Margin erosion can occur when raw material costs spike (steel, copper, and aluminium are major inputs) and the company cannot pass those increases through to clients on fixed-price contracts. This is a recurring risk for capital goods companies that bid aggressively on long-duration contracts: input costs at execution time may be materially different from input costs assumed at the bidding stage.

Working capital days

Capital goods is a working-capital-intensive business. Companies must mobilise materials and pay subcontractors before they invoice the client. Clients — especially government clients — often have payment cycles that stretch into months. The result is that receivables and unbilled revenue (work completed but not yet invoiced or collected) can represent a large proportion of the balance sheet.

Working capital days — measured as (receivables + inventory + unbilled revenue − payables) ÷ daily revenue — is a critical metric for understanding how much capital is tied up in the operating cycle. High and rising working capital days typically translate into higher net debt and interest costs, squeezing net profit margins even when EBITDA margins are stable.

ROCE (Return on Capital Employed)

Return on capital employed — EBIT divided by average capital employed — is arguably the single most important long-run quality metric for capital goods companies. Because these businesses require large working capital investments and often carry significant fixed assets, even a modestly profitable company can generate a poor ROCE if capital is poorly deployed. Companies like L&T and ABB India historically demonstrated superior ROCE relative to peers partly through disciplined working capital management and selective project bidding. BHEL, by contrast, saw its ROCE decline materially as utilisation fell and working capital cycles extended during the thermal power slowdown of the 2010s.

Net debt and interest coverage

Infrastructure-heavy capital goods projects — long-duration, working- capital-intensive, with government counterparties — historically produced cyclical swings in net debt positions. Companies that grew aggressively by winning large orders without adequate equity capital or receivables management sometimes found themselves in financial stress when the government payment cycle stretched further than the balance sheet could comfortably absorb. Interest coverage (EBIT ÷ interest expense) below 2x has historically been a yellow flag in the capital goods segment. Our debt-to-equity primer covers leverage analysis in detail.

Major listed players

The following companies were among the notable listed capital goods players in the Nifty 500 universe as of the publication of this guide. These descriptions are educational and historical — they are not a recommendation or endorsement of any company.

Larsen & Toubro (L&T)

L&T was historically India's largest engineering conglomerate, with operations spanning heavy engineering, infrastructure construction, defence, power, hydrocarbon projects, and financial services. Its scale and diversification across multiple verticals gave it a structurally different risk profile from single-vertical capital goods peers. L&T also historically served as a subcontractor or technology partner for international majors in specific defence and nuclear programmes.

ABB India

ABB India was the listed subsidiary of the global Swiss-Swedish engineering company ABB, and historically focused on automation, electrification, motion (industrial motors and drives), and robotics. Its Indian operations served industries including steel, cement, data centres, and utilities. As a subsidiary of a technology-rich parent, ABB India historically had access to proprietary product lines and software platforms that gave it differentiated positioning in the industrial automation segment.

Siemens India

Siemens India, similarly, was the listed subsidiary of the German engineering major Siemens AG. Its Indian business spanned energy (grid technology, transformers), mobility (railway signalling and traction), digital industries (factory automation), and smart infrastructure. Like ABB India, Siemens India benefited from technology transfer from its parent but also depended on the parent's strategic decisions about what to manufacture locally versus import.

BHEL (Bharat Heavy Electricals Limited)

BHEL was the government-owned heavy electricals company that historically dominated India's thermal power equipment (boilers, turbines, generators) market. At its peak in the early 2010s, BHEL was executing a very large installed-base expansion programme for India's power sector. Subsequently, as new thermal capacity additions slowed and competition from Chinese suppliers intensified, BHEL's revenue and margins contracted materially. The company diversified into defence, railways, and solar over the subsequent years as part of a restructuring effort.

Thermax

Thermax was a Pune-based capital goods company specialising in energy and environment solutions: industrial boilers, cooling and heating systems, waste heat recovery, water and wastewater treatment, and air pollution control. Its client base spanned food and beverages, chemicals, pharmaceuticals, paper, and metals industries. Thermax had a notably international business, with subsidiaries and projects in multiple countries.

Cummins India

Cummins India was the listed subsidiary of the US-based engine manufacturer Cummins Inc., and manufactured diesel and natural gas engines and power generation equipment. Its products served construction, industrial, and power generation applications. Cummins India historically maintained strong ROCE metrics, partly owing to its proprietary technology position and the recurring aftermarket (spare parts and servicing) component of its revenue.

KEC International

KEC International was a subsidiary of the RPG Group and was one of India's largest power transmission infrastructure companies, active in erecting high-voltage transmission towers and stringing conductors across multiple countries. KEC also expanded into railways, civil construction, and cables. Its business was inherently project-based and globally diversified, with a significant portion of its order book historically coming from export markets in the Middle East, Africa, and Central Asia.

The defence segment: Make in India and indigenisation

India's defence capital goods segment underwent a significant structural shift over the 2020s as government policy pivoted deliberately toward domestic manufacturing. The policy architecture had several components that collectively reshaped who could participate in and profit from defence procurement.

The indigenisation push

India historically imported a large proportion of its defence equipment — estimates from the Stockholm International Peace Research Institute consistently showed India as one of the world's largest arms importers by value through the 2010s. This was seen as a strategic vulnerability (dependence on foreign suppliers) as well as an economic inefficiency (foreign exchange outflow and limited domestic job creation). The Make in India initiative in defence, formalised through the Defence Acquisition Procedure (DAP) and its predecessors, created explicit preferences for domestically manufactured equipment.

A series of "positive indigenisation lists" — enumerating hundreds of items from ammunition to complex fighter jet components that could no longer be imported after specified dates — created mandatory domestic market demand for Indian defence manufacturers. The lists were expanded progressively through the early 2020s. This policy backdrop was a structural demand driver for domestic defence capital goods companies with the capability to manufacture the listed items.

DPSUs: the established incumbents

The Defence Public Sector Undertakings had accumulated decades of production experience, security clearances, government relationships, and installed capacity. The key listed DPSUs included:

• BEL (Bharat Electronics Limited): Defence electronics, radar systems, communication equipment, electronic warfare systems. BEL historically had a dominant position in ground- based and ship-based radar and sonar systems.
• HAL (Hindustan Aeronautics Limited): Aircraft design, manufacture, and overhaul — helicopters, fighters (under licence from foreign OEMs), and eventually domestically designed platforms like the Light Combat Aircraft Tejas. HAL's order book expanded significantly as the Indian Air Force and Navy placed large orders for helicopters and fighters.
• Bharat Dynamics Limited (BDL): Missile systems and underwater weapons — torpedoes, anti-tank guided missiles, surface-to-air missiles. BDL was a key production partner for DRDO-developed missile programmes and also assembled foreign missile systems under transfer-of-technology arrangements.

DPSUs historically faced criticism for slower execution relative to private-sector benchmarks, higher manpower costs, and dependence on DRDO technology pipelines that did not always produce timely or commercially competitive designs. However, their established relationships with the Ministry of Defence and their security clearances gave them structural advantages in winning initial production orders.

Private-sector defence players

The progressive opening of defence manufacturing to private companies created opportunities for conglomerates with engineering capability — notably L&T (armoured vehicles, naval vessels, artillery), Tata Group (through Tata Advanced Systems), Mahindra Defence, and mid-size specialist companies. The private sector historically brought faster execution timelines and the ability to co-develop with foreign OEMs through joint ventures — which were a key route to technology acquisition under the Make in India framework.

The financial profile of defence businesses — long lead times between order and delivery, milestone-based payment structures, high up-front R&D investment — meant that defence revenue from new programme wins often only appeared on the income statement several years after the order was booked. Analysts tracking defence exposure in capital goods companies therefore paid close attention to programme timelines as well as order values.

BTG equipment: boilers, turbines, and generators

BTG — Boiler, Turbine, Generator — is the core equipment package at the heart of a thermal (coal or gas) power plant. The boiler burns fuel to generate steam, the turbine converts steam pressure into rotational energy, and the generator converts rotation into electricity. Together, these three components represent the single largest capital cost in a conventional power station.

BHEL's historical dominance and subsequent decline

BHEL had historically supplied the bulk of BTG equipment for India's central-sector (NTPC) and state-sector power stations, benefiting from a combination of government preference, established manufacturing facilities in Haridwar, Trichy, Hyderabad, and Bhopal, and technology licensed from Siemens, Alstom, and other foreign partners.

The capacity expansion boom of the late 2000s and early 2010s — when India was adding thermal capacity aggressively to address chronic power shortages — was BHEL's high-water mark. Revenue and order books reached record levels. However, the subsequent decade brought multiple structural headwinds:

• Private power developers ran into coal linkage problems, fuel cost disputes, state electricity board payment delays, and financing difficulties. Many planned projects were shelved or restructured, removing a large potential client base.
• Chinese BTG equipment suppliers — notably SEPCO, DONGFANG, and Shanghai Electric — offered aggressive pricing that undercut BHEL on many tenders.
• India's energy policy shifted progressively toward renewables (solar and wind) where BTG manufacturers had no natural competitive advantage.
• BHEL's overhead structure — large unionised workforce, multiple legacy manufacturing sites — was difficult to restructure quickly, creating operating leverage that worked against the company as volumes declined.

By the early 2020s, BHEL's revenue had contracted materially from peak levels and the company was pursuing diversification into solar EPC, rail systems, defence electronics, and water projects to reduce dependence on the declining thermal BTG segment.

The T&D segment: power transmission and distribution

Power generated at a plant is of no use unless it can be transported to where it is consumed. The Transmission and Distribution (T&D) segment builds and maintains the infrastructure that does this. High-voltage transmission lines carry bulk power across hundreds of kilometres; substations step voltage down for regional distribution; distribution networks carry lower-voltage power to homes and businesses.

The investment cycle

India's T&D infrastructure historically underinvested relative to generation capacity additions. The consequence was significant transmission congestion and distribution losses — a portion of power generated was being lost in aging distribution infrastructure. Policy initiatives like DDUGJY, IPDS, UDAY, and more recently the Revamped Distribution Sector Scheme (RDSS) channelled central government funding into upgrading the distribution network.

Simultaneously, India's renewable energy ambitions — targeting 500 GW of non-fossil capacity by 2030 — required substantial new transmission infrastructure to connect renewable generation sites (often in solar- and wind-rich states like Rajasthan, Gujarat, and Tamil Nadu) to consumption centres. Green Energy Corridors and inter-state transmission system projects created a pipeline of new T&D investment.

Key companies in T&D

KEC International and Kalpataru Projects Internationalwere among the largest listed companies engaged in erecting high-voltage transmission towers. Their businesses were globally diversified — both had significant international order books — which provided some counter-cyclicality when Indian T&D ordering softened. Transformer manufacturers — including companies supplying large power transformers to Powergrid — formed another layer of the ecosystem but were more fragmented across listed and unlisted players.

The T&D segment tends to be less working-capital-intensive than complex BTG projects because the technology is more standardised, execution timelines are shorter, and government payment cycles (through Powergrid, PGCIL's subsidiaries, and state transcos) were historically somewhat more reliable than state electricity board payments for generation projects.

Nifty 500 companies in this sector

The capital goods sector within the Nifty 500 universe encompassed a diverse set of companies spanning heavy engineering, defence electronics, industrial automation, T&D infrastructure, and project construction. Company profiles for individual Nifty 500 constituents — including historical financials, key ratios, and operational metrics — are available in our stock profiles section. When reading those profiles, the metrics framework discussed in this primer — order inflow, order book, EBITDA margin, working capital days, and ROCE — provides the analytical context for interpreting the numbers.

Cyclicality and the government capex link

Capital goods sector revenues are deeply linked to the government capex cycle. When the central government expanded its capital expenditure budget aggressively — as it did in the early 2020s in India — the flow-through to capital goods order books was substantial. Power utilities, railways, defence, and infrastructure ministries collectively represent the largest pool of demand for capital goods in India. Private-sector capex — from steel, cement, chemicals, and consumer goods companies — adds another layer but is more sensitive to the industrial credit cycle and capacity utilisation dynamics.

The implication is that capital goods companies tend to be economically cyclical: their revenues can contract materially during periods of government fiscal tightening or private-sector investment hesitancy. Understanding where the economy sits in the capex cycle — including government budget priorities — is therefore central to evaluating capital goods sector prospects. This linkage also means that election years and Union Budget announcements have historically been important data points for the sector.

This article is educational only and does not constitute investment advice or a recommendation to buy, sell, or hold any security. All company descriptions and historical observations are illustrative and reflect past conditions; past performance is not indicative of future results. Stock markets involve risk, including the loss of principal. Please consult a SEBI-registered investment adviser before making any investment decision.