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Indian EconomyPrelims: HighMains: HighInterview: Medium12 min readUpdated 2026-05-25

Infrastructure

Infrastructure · PPP models · HAM · BOT · TOT

Story hook

On 17 February 2009, the Yamuna Expressway concessionaire Jaypee Infratech signed a 36-year deal with NOIDA to build, operate and collect tolls on the 165 km Greater Noida-Agra corridor. Construction finished in 2012 ahead of schedule. By 2017, Jaypee Infratech was bankrupt, its parent group's accounts under IBC proceedings, the toll revenue gap so wide that even a 70% traffic shortfall couldn't fully explain it. Homebuyers in Jaypee's adjacent real-estate towers — promised as part of the deal sweetener — were left without flats. By 2024, NBCC had been roped in by NCLT to finish the apartments. The expressway runs; the financial structure behind it doesn't.

This is the story of India's first wave of road PPP — and the reason why the HAM (Hybrid Annuity Model), introduced by the Modi government in January 2016, exists. HAM rewrites the bargain: government takes 40% of construction risk by paying upfront in instalments, the contractor takes only 60% via debt, and there's no toll-revenue risk because the contractor is paid an annuity by the government. Traffic risk — the killer of the 2000s BOT-Toll boom — stays with the public side.

Today, India's roads alone need ₹15 lakh crore of investment to hit the FY25 Bharatmala targets. Roughly 63% of that is being delivered under HAM contracts. EPC (pure government finance) makes up another 27%. The remaining 10% is split between BOT-Toll and the newer TOT (Toll-Operate-Transfer) model — where existing roads are monetised to fund new ones. The PPP family has grown.

Why this matters for UPSC

PPPs sit at the intersection of three syllabus areas — infrastructure investment, fiscal policy, and contract law. Expect at least one Prelims MCQ a year on model definitions (BOT, BOOT, BOOM, HAM, TOT) and on NHAI's Bharatmala numbers. Mains questions favour the critical-analysis frame — "why have PPPs in roads succeeded while those in power have failed?" or "evaluate the HAM model's risk allocation." Interview boards routinely probe renegotiation, arbitration, traffic-shortfall risk, and the Kelkar Committee (2015) report on revisiting PPPs.

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