Key Terms & Concepts — UPSC Mains
DBFOT Model
"Design-Build-Finance-Operate-Transfer — a PPP model where the private partner handles all project phases before transferring the asset to the government"
DBFOT (Design-Build-Finance-Operate-Transfer) is a comprehensive Public-Private Partnership model where the private concessionaire is responsible for the entire lifecycle of an infrastructure project — designing, constructing, financing, operating, and maintaining the asset for a specified concession period, after which ownership transfers back to the government. The private partner earns revenue through user charges (tolls, tariffs, fees) or annuity payments during the concession period. DBFOT is the most common PPP variant for highways (NHAI), airports, and port terminals in India.
Frequently tested in UPSC Prelims and GS-3 (Infrastructure, Investment Models). UPSC expects candidates to distinguish between DBFOT, BOT (Build-Operate-Transfer), BOT-Annuity, HAM (Hybrid Annuity Model), and EPC (Engineering-Procurement-Construction) models. Understanding risk allocation between public and private partners is essential for Mains answers on infrastructure governance.
- 1 Private partner bears design, construction, financing, and operational risk
- 2 Revenue comes from user charges or government annuity payments during concession period
- 3 Asset ownership transfers to government after concession expires
- 4 Commonly used for highways (NHAI), airports, and port terminals
- 5 Noida International Airport uses DBFOT with a 40-year concession to Zurich Airport International AG
The Noida International Airport (Jewar) was developed under a DBFOT concession agreement signed on October 7, 2021, with Zurich Airport International AG winning the bid for a 40-year concession period.
