# Construction and infrastructure and Public administration, defence and security

Government is construction's largest client: it plans, funds and approves most roads, railways, water networks and military works, so public capital budgets set much of the order book. The reverse flow is small, but permits, land and payment discipline from public agencies decide how fast that order book turns into revenue.

Source page: https://www.materialinsights.org/links/construction-and-infrastructure-and-public-administration-defence-and-security/

[Construction and infrastructure](https://www.materialinsights.org/industries/construction/) (industry) and [Public administration, defence and security](https://www.materialinsights.org/industries/public_admin/) (industry): 6 relationships.

## How they are linked

### 1. Buys from

*Physical flow · ₹3.2 per ₹100 · Public administration, defence and security buys from Construction and infrastructure*

Government departments and the armed forces pay contractors to build and maintain offices, barracks, roads, airfields and other public works.

- **₹3.2** of every ₹100 of Public administration, defence and security output, all rounds (India 2022)
- **₹2.5** bought directly

This counts only works charged to administration and defence. Most public infrastructure, such as highways and railways, is recorded as investment by other sectors or as final demand, so the table understates how much construction depends on public money.

Sources: [OECD](https://www.oecd.org/en/data/datasets/input-output-tables.html)

### 2. Buys from

*Physical flow · ₹0.2 per ₹100 · Construction and infrastructure buys from Public administration, defence and security*

Contractors pay fees for permits, approvals and other public services.

- **₹0.2** of every ₹100 of Construction and infrastructure output, all rounds (India 2022)
- **₹0.1** bought directly

The money is trivial, but the service is not: environmental clearance, land acquisition and right of way are provided by the state and are a common cause of project delay in India.

Sources: [OECD](https://www.oecd.org/en/data/datasets/input-output-tables.html)

### 3. Industry input

*Physical flow · Criticality 4 of 5 · Public administration to Construction and infrastructure*

Public infrastructure agencies and project sponsors give construction its budgets and statutory powers, from land acquisition to tolling rights.

Highway, rail, metro and water contracts in India are mostly awarded by central agencies, state departments and public companies. When budgets are cut or payments slow, contractors' working capital is hit first.

Enterprise types that depend on it:

- Public infrastructure agencies and project sponsors: budgets and statutory powers (criticality 4 of 5)

Sources: [Material Insights](https://www.materialinsights.org/industries/construction/)

### 4. Industry input

*Physical flow · Criticality 3 of 5 · Construction and infrastructure to Public administration*

Two enterprise types in public administration depend on construction: public works and infrastructure contractors that provide building capacity, and public hospitals, schools and universities that need facilities.

Shortages of contracting capacity show up as delayed public projects and higher bids rather than as a halt to public services.

Enterprise types that depend on it:

- Public infrastructure agencies and project sponsors: budgets and statutory powers (criticality 4 of 5)

Sources: [Material Insights](https://www.materialinsights.org/industries/public_admin/)

### 5. Public capex

*Transition · Strong · Government budgets drive construction orders*

In India the centre and the states fund most infrastructure, so the size and mix of public capital spending is the main driver of civil construction demand.

- **₹12.2 lakh crore** central capital expenditure, 2026-27 budget estimate
- **3.1%** of GDP
- **79%** share of the National Infrastructure Pipeline expected from the centre and states, 2020 to 2025

Central capex rose from ₹11.2 lakh crore budgeted for 2025-26; in 2026-27 roads (MoRTH) are allocated ₹3.10 lakh crore and Indian Railways about ₹2.93 lakh crore. The National Infrastructure Pipeline split its ₹111 lakh crore plan for 2020 to 2025 into 39% centre, 40% states and 21% private, with energy, roads, urban and railways taking about 71%. With four-fifths of planned investment public, contractors are tied to the budget cycle.

Sources: [Indian Infrastructure](https://indianinfrastructure.com/2026/03/06/building-infrastructure-capacity-budget-allocation-across-sectors/); [Invest India](https://www.investindia.gov.in/team-india-blogs/building-new-india-national-infrastructure-pipeline)

### 6. Defence works

*Policy · Medium · Defence budget funds military construction*

Defence capital budgets pay for border roads, tunnels, airfields and bases as well as weapons, so part of defence spending becomes construction work.

- **₹7.85 lakh crore** defence allocation, 2026-27
- **over ₹2.19 lakh crore** capital allocation to the defence forces, 2026-27

The 2026-27 budget raised funding for the Border Roads Organisation for tunnels, bridges and airfields, though it gives no separate figure. Most defence capital goes to equipment, so the construction slice is smaller than the headline suggests.

Sources: [Drishti IAS](https://www.drishtiias.com/daily-updates/daily-news-analysis/defence-in-union-budget-2026-27)

## For investors

### Key learnings

1. Public budgets set most of the infrastructure order book in India, so the central and state capex numbers matter more to contractors than private demand.
2. The input-output tables understate the link, because public infrastructure is booked as investment rather than as purchases by administration.
3. Contractor earnings depend on how fast governments pay and clear land, not only on how much they budget.

### What to track

- **Central capex: budget, revised estimate and monthly actuals**: Shortfalls against budget signal slower order flow and execution (Monthly · Controller General of Accounts)
- **State capital expenditure**: States were expected to fund about as much of the infrastructure pipeline as the centre, so their capex shows the wider cycle (Quarterly · state budgets, RBI state finances)
- **Contract awards by NHAI and railways**: Leading indicator of contractor revenue, since awards turn into billing over the following years (Monthly · NHAI, Ministry of Railways)

## For policymakers

### Key learnings

1. Central capex at about 3.1% of GDP makes public investment the backbone of construction demand, which is why its timing matters for jobs and steel and cement demand.
2. Land, clearances and payments are in government hands, so execution depends on administrative capacity as well as on budgets.
3. Private funding in the National Infrastructure Pipeline was expected to be 21%, so raising it is the main way to grow infrastructure without more public borrowing.

### What to track

- **Capex utilisation against budget**: Shows whether allocations become built assets (Monthly · CGA)
- **Stalled and delayed central projects**: Measures the cost of land and approval bottlenecks (Monthly · MoSPI project monitoring)

## India

Central capital expenditure is budgeted at ₹12.2 lakh crore for 2026-27, about 3.1% of GDP, and the centre and states together were expected to fund about 79% of the National Infrastructure Pipeline, so Indian contractors depend heavily on public budgets.

## Sources

1. [OECD Input-Output Tables 2025 edition, India 2022](https://www.oecd.org/en/data/datasets/input-output-tables.html), OECD
2. [Industry map: Construction and infrastructure](https://www.materialinsights.org/industries/construction/), Material Insights (2026)
3. [Industry map: Public administration, defence and security](https://www.materialinsights.org/industries/public_admin/), Material Insights (2026)
4. [Building infrastructure capacity: budget allocation across sectors](https://indianinfrastructure.com/2026/03/06/building-infrastructure-capacity-budget-allocation-across-sectors/), Indian Infrastructure (2026)
5. [Building new India: National Infrastructure Pipeline](https://www.investindia.gov.in/team-india-blogs/building-new-india-national-infrastructure-pipeline), Invest India (2020)
6. [Defence in Union Budget 2026-27](https://www.drishtiias.com/daily-updates/daily-news-analysis/defence-in-union-budget-2026-27), Drishti IAS (2026)
