Indian Economy Industry and Infrastructure GS Paper III

Infrastructure and PPP Models

Infrastructure investment models for UPSC — EPC, BOT-Toll, BOT-Annuity, HAM, TOT, Swiss challenge, VGF, InvITs, NIIF, NaBFID, the NIP, asset monetisation and Gati Shakti.

SyllabusGS III · Infrastructure: energy, ports, roads, airports, railways; investment models

By 11 min read Updated Oct 2026 #economy#infrastructure#ppp

Prerequisites: Industrial Policy and Liberalisation · Fiscal Policy and the Budget

The Hook: Selling Roads Without Selling Them

Connect: In the News → Concept

In August 2021, the government released the National Monetisation Pipeline, which estimated about ₹6 lakh crore could be raised over four years (FY 2021-22 to 2024-25) by leasing out operating, public-owned assets — highways, railway stations, transmission lines, pipelines, warehouses and stadiums — to private operators for a fixed period. The government would keep ownership; the assets would come back at the end of the term.

It raises the question this topic answers: how does a government pay for infrastructure when it cannot fund it alone — and how should risk be shared with private partners?

The Core Concept

Why infrastructure is different

Infrastructure — energy, roads, railways, ports, airports, telecom, water, urban transport — has features that make private finance hard:

  • High upfront, sunk costs and long gestation; returns come over decades.
  • Natural monopoly features (one pipeline, one rail line) that need regulation.
  • Positive externalities — benefits to the wider economy that a private owner cannot charge for.
  • Public-good character for some assets (rural roads), where user charges are impossible or unfair.

Banks fund long-term infrastructure from short-term deposits — an asset–liability mismatch. The wave of stalled infrastructure loans of the 2010s fed into what the Economic Survey 2016-17 called the twin balance sheet problem: stressed corporates and stressed banks.

Public–Private Partnership (PPP) models

A PPP is a long-term contract in which a private partner finances, builds and/or operates a public asset, with risks shared between the public authority and the private partner. The key question in each model is who bears which risk — construction, financing, traffic (demand) and operation.

ModelHow it worksTraffic / revenue riskWho finances
EPC (Engineering, Procurement, Construction)Government pays a contractor to design and build; government owns and operatesGovernmentGovernment
BOT – TollPrivate partner builds, operates, collects user charges for the concession period, then transfersPrivatePrivate
BOT – AnnuityPrivate partner builds and operates; government pays fixed annuities; government may collect tollsGovernmentPrivate (repaid via annuity)
HAM (Hybrid Annuity Model)Government pays 40% of project cost during construction; developer arranges 60%; government repays this through annuities with interest over the operation period; government collects tollsGovernmentShared
TOT (Toll–Operate–Transfer)Investor pays an upfront lump sum for the right to operate and collect tolls on a completed, publicly funded highway for a long concession periodPrivatePrivate (upfront payment)
BOO / BOOTBuild–Own–Operate (ownership stays private) / Build–Own–Operate–Transfer (ownership transfers at the end)PrivatePrivate
DBFOTDesign–Build–Finance–Operate–Transfer; the private partner also designsPrivatePrivate

HAM was approved for national highways in 2016. It was designed after BOT-Toll bids dried up: developers had been hurt by traffic shortfalls, land-acquisition delays and high leverage. HAM moves traffic risk to the government and reduces the developer’s financing burden, while keeping private efficiency in construction and maintenance.

Swiss challenge: a private party submits an unsolicited proposal; the authority invites competing bids, and the original proponent gets the right to match the best bid. It encourages innovation but can reduce transparency and competition.

graph LR
    A[EPC: Govt bears all risk] --> B[HAM: risk shared]
    B --> C[BOT-Annuity: private builds, govt bears traffic risk]
    C --> D[BOT-Toll and TOT: private bears traffic risk]
    D --> E[BOO: private owns]

The PPP experience and the Kelkar Committee

The Committee on Revisiting and Revitalising the PPP Model of Infrastructure (chaired by Vijay Kelkar, report 2015) diagnosed the problems of India’s first PPP wave: aggressive bidding, poor risk allocation, land and clearance delays, rigid contracts and fear of vigilance action. It recommended:

  • Equitable risk sharing — the party best able to manage a risk should bear it.
  • A framework for renegotiation of contracts and an Infrastructure PPP Adjudication Tribunal.
  • Strengthening institutional capacity (a “3P India” institute).
  • Amending the Prevention of Corruption Act to distinguish genuine errors of judgment from corruption.
  • Caution with the Swiss challenge method.

How infrastructure is financed

InstrumentWhat it is
Viability Gap Funding (VGF)A one-time capital grant to make an economically justified but commercially unviable PPP project bankable. Under the 2006 scheme, the Centre can give up to 20% of project cost, and the sponsoring authority a further 20%
InvITs and REITsTrusts regulated by SEBI (regulations of 2014) that pool income-generating infrastructure (InvITs) or real-estate assets (REITs); units are listed, and most of the net distributable cash flow (at least 90%) must be paid to unitholders
National Investment and Infrastructure Fund (NIIF)Set up in 2015 as a government-anchored fund that co-invests with domestic and foreign investors
NaBFIDNational Bank for Financing Infrastructure and Development, a development finance institution created by an Act of Parliament in 2021
Infrastructure bonds, green bonds, ECBsMarket borrowing for long-term projects
Asset monetisationLeasing operating brownfield assets (TOT, InvITs, OMD contracts) to recycle capital into new projects

National plans

PlanYearWhat it does
National Infrastructure Pipeline (NIP)Launched December 2019Pipeline of projects for FY 2019-20 to 2024-25; the task force’s final report (2020) put the total at about ₹111 lakh crore
National Monetisation Pipeline (NMP)August 2021About ₹6 lakh crore from leasing brownfield assets over FY 2021-22 to 2024-25; ownership retained by the government
PM Gati Shakti National Master PlanOctober 2021A GIS-based digital platform that integrates the infrastructure plans of multiple ministries; built on seven engines — railways, roads, ports, waterways, airports, mass transport and logistics infrastructure
National Logistics PolicySeptember 2022Lowering logistics costs; complements Gati Shakti

Sector programmes to know: Sagarmala (ports-led development, 2015); Bharatmala Pariyojana (highways, 2017); UDAN regional air connectivity (2016); Dedicated Freight Corridors (Eastern and Western, built by DFCCIL); the National Waterways Act, 2016, which declared 111 national waterways.

Memory Anchors

Risk ladder (government → private): “Every Highway Annuity Tests Ownership” → EPC (all government) · HAM (shared) · Annuity BOT (government bears traffic) · Toll BOT and TOT (private bears traffic) · Own (BOO).

HAM in numbers: “40 now, 60 later” — government pays 40% during construction; the 60% raised by the developer is repaid through annuities.

TOT is the reverse of BOT: in BOT the private party builds first; in TOT the government has already built and the private party pays upfront to operate.

Comparison: InvIT vs REIT — InvIT holds roads, power lines, pipelines; REIT holds rent-yielding commercial real estate. Both: SEBI, 2014.

For Prelims

Facts worth a mark
  • HAM: 40% by government during construction; traffic risk with government; approved for highways in 2016.
  • BOT-Toll: traffic risk with the private partner. BOT-Annuity: traffic risk with the government.
  • TOT: upfront payment by the investor for operating completed public highways.
  • Swiss challenge: unsolicited proposal; the original proponent may match the best bid.
  • InvITs and REITs: SEBI regulations, 2014.
  • NaBFID: statutory DFI, 2021. NIIF: 2015.
  • Kelkar Committee (2015): revitalising PPPs; IPAT, 3P India, renegotiation framework.
  • PM Gati Shakti: October 2021; seven engines. NMP: August 2021.

For Mains

  • Dimensions: fiscal space and crowding in; risk allocation; contract design and renegotiation; land acquisition and clearances; user charges and affordability; regulation of natural monopolies; climate-resilient and green infrastructure; logistics cost and competitiveness.
  • Keywords: viability gap, asset recycling, brownfield monetisation, asset–liability mismatch, twin balance sheet, risk-sharing, concession agreement, last-mile connectivity, multimodal logistics.
  • Value-addition: Kelkar Committee (2015); the shift from BOT-Toll to HAM after 2016; NMP (2021) as capital recycling; PM Gati Shakti’s integrated planning; India’s commitment at COP26 (November 2021) to reach 500 GW of non-fossil electricity capacity by 2030, which shapes energy infrastructure.

Common Traps

Trap #1: 'Monetisation means privatisation'
Under the NMP, the government retains ownership; private operators get rights for a fixed term and the assets come back. Privatisation transfers ownership permanently.
Trap #2: Who bears traffic risk in HAM?
In HAM, the government collects tolls and bears traffic risk; the developer is paid through annuities. In BOT-Toll, the developer bears traffic risk.
Trap #3: VGF is not a loan
Viability Gap Funding is a grant, usually released during construction, to bridge the gap between a project’s cost and what users can pay. It does not have to be repaid.

In the News

  • August 2021 — National Monetisation Pipeline released.
  • October 2021 — PM Gati Shakti National Master Plan launched.
  • September 2022 — National Logistics Policy launched.

See Current Affairs for the latest infrastructure allocations.

Practice

Prelims

UPSC Practice · Prelims GS I Qppp-1

With reference to the Hybrid Annuity Model (HAM) for highway projects, consider the following statements:

  1. The private developer bears the entire traffic risk.
  2. The government pays a part of the project cost during the construction period.
  3. Toll collection is the responsibility of the government authority.

Which of the statements given above is/are correct?

  1. A 1 only
  2. B 2 only
  3. C 1 and 3 only
  4. D 2 and 3 only
Solution

Statement 1 is wrong — in HAM, the government bears traffic risk. Statement 2 is correct — the government pays 40% of the project cost during construction. Statement 3 is correct — the authority (NHAI for national highways) collects tolls, and pays the developer through annuities.

Answer: D

UPSC-pattern practice question
UPSC Practice · Prelims GS I Qppp-2

Under which model does a private investor pay the government an upfront lump sum for the right to operate and collect tolls on an already completed, publicly funded highway for a fixed concession period?

  1. A Toll-Operate-Transfer
  2. B Build-Operate-Transfer (Annuity)
  3. C Engineering, Procurement and Construction
  4. D Build-Own-Operate
Solution

This is Toll-Operate-Transfer (TOT) — an asset-monetisation model. In BOT-Annuity, the private partner builds the road and is paid annuities; in EPC, the government pays a contractor to build; in BOO, the private party builds and keeps ownership.

Answer: A

UPSC-pattern practice question
UPSC Practice · Prelims GS I Qppp-3

Consider the following statements:

  1. Infrastructure Investment Trusts (InvITs) in India are regulated by SEBI.
  2. The National Bank for Financing Infrastructure and Development (NaBFID) was established by an Act of Parliament.
  3. Viability Gap Funding is a grant to make commercially unviable PPP projects bankable.
  4. Under the National Monetisation Pipeline, ownership of the assets is transferred permanently to private operators.

How many of the above statements are correct?

  1. A Only one
  2. B Only two
  3. C Only three
  4. D All four
Solution

Statements 1, 2 and 3 are correct: InvITs come under SEBI’s 2014 regulations; NaBFID was created by the NaBFID Act, 2021; VGF is a capital grant, not a loan. Statement 4 is wrong — the NMP leases assets for a fixed term, and ownership stays with the government. So three.

Answer: C

UPSC-pattern practice question

Mains

UPSC Practice · Mains GS III 15 marks · 250 words Qppp-m1

The first wave of Public–Private Partnerships in Indian infrastructure ended in stalled projects and stressed bank balance sheets. Examine the reasons and evaluate how newer models such as HAM, TOT and InvITs address them.

Solution

Introduction: PPPs were meant to bring private capital and efficiency into infrastructure. The BOT-Toll-led wave of the 2000s faltered, contributing to stressed infrastructure loans and the twin balance sheet problem (Economic Survey 2016-17).

Body:

  • Reasons for failure: aggressive bidding on optimistic traffic forecasts; private partners bearing risks they could not control (land acquisition, clearances, traffic); rigid contracts with no renegotiation route; bank asset–liability mismatch; slow dispute resolution (Kelkar Committee, 2015).
  • HAM (2016): government pays 40% during construction and bears traffic risk; reduces developer leverage; revived highway awards — but raises the government’s fiscal commitment.
  • TOT and asset monetisation (NMP 2021): recycle capital from completed, de-risked assets into new projects; investors take operating risk, not construction risk.
  • InvITs: attract long-term pension and insurance money into operating assets; free up developer and bank capital.
  • Other enablers: VGF, NIIF, NaBFID for long-term finance; PM Gati Shakti for integrated planning.
  • Remaining issues: contingent liabilities, valuation of monetised assets, user charges, regulatory capacity.

Conclusion: The newer models allocate risks more sensibly — construction to builders, traffic to the State or to investors in mature assets — but their success depends on credible contracts, timely land and clearances, and independent regulation.

UPSC-pattern practice question

Quick Revision

PointOne-liner
EPCGovernment finances and owns; contractor builds
BOT-TollPrivate finances, bears traffic risk
BOT-AnnuityPrivate builds; government pays annuities and bears traffic risk
HAM40% government during construction; 60% developer repaid by annuity
TOTUpfront payment to operate completed public roads
Swiss challengeUnsolicited proposal; proponent can match
VGFGrant; up to 20% Centre + 20% sponsor (2006 scheme)
InvIT / REITSEBI regulations, 2014
NIP / NMPDecember 2019 / August 2021
Gati ShaktiOctober 2021; seven engines

Key Takeaways

Key Takeaways
  1. Every PPP model is a way of dividing construction, finance and traffic risk; learn the models by who bears which risk.
  2. HAM and TOT emerged because BOT-Toll loaded too much risk on private developers.
  3. Asset monetisation, InvITs, NIIF and NaBFID aim to bring long-term capital into infrastructure without permanent sale of public assets.
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