Public-Private Partnerships (PPPs) are a tried-and-true method by which the government may quicken infrastructure construction. The government may increase the funds it receives for infrastructure projects like hospitals, bridges, and highways by collaborating with private groups. Faster completion times and more investment have been attained using this strategy. PPPs also provide many societal benefits, such as effective planning and execution, that raise national productivity. They also foster a mutually beneficial connection between the public and private sectors, which makes them vital to India’s economic transformation into a $5 trillion economy. The government can effectively and efficiently support the development of infrastructure through PPPs. Through PPPs, infrastructure development reaches its maximum potential and encourages progress for everyone. The prosperity and development of India depend heavily on this approach. The average completion rate for Public-Private Partnership (PPP) projects in India is around 65%, showcasing a slight improvement compared to the 2021 figure of 63%. Financial investment in infrastructure projects by the private sector via public-private partnerships (PPPs) has increased in recent years, suggesting a boost in investor confidence. With an emphasis on cost-effectiveness, infrastructure quality, and completion time, this study aims to comprehensively analyze the National Highway Development in India from 2016 to 2023, focusing on Public-Private Partnerships (PPPs) dynamics. This analysis includes examining the PPP projects undertaken by selected Private Limited Companies, evaluating the contribution and impact of Build-Operate-Transfer (BOT) models within the PPP framework for infrastructure development, studying the growth trend of FASTag implementation from 2016 to 2023, and assessing the financial sustainability of road development projects in India. Through these analyses, the study seeks to provide insights into PPPs’ effectiveness, challenges, and potential improvements in facilitating infrastructure development, particularly in the context of national highways and road projects in India.