India’s Hybrid Annuity Model (HAM) has transformed the way national highways are financed by shifting traffic risk away from private developers. Introduced in 2016 after several highway projects under the Build-Operate-Transfer (BOT) model struggled due to uncertain toll revenues, HAM offers a more balanced approach to infrastructure development.
Under this model, the government funds 40% of the project cost during construction, while the remaining 60% is financed by the private developer. Instead of depending on toll collections, developers receive fixed annuity payments from the government over the project’s operational period. Toll collection remains the responsibility of the government, ensuring that developers are protected from fluctuations in traffic volumes.
This risk-sharing mechanism has encouraged greater private participation in highway construction and significantly improved project execution. Hundreds of highway projects have been awarded under HAM, helping revive investment in India’s road infrastructure after the setbacks experienced under the BOT model.
However, the model is not without challenges. Delays in land acquisition, financing constraints and slower project approvals continue to affect timely completion of several projects. These issues highlight that while HAM successfully addresses traffic-related risks, broader administrative and financial bottlenecks still need attention.





