Hybrid Annuity Model — Cashflow Calculator

Enter project numbers below. The calculator assumes equal instalment distribution for construction-phase payments and semi-annual annuities in operation unless you change the frequency. Click Calculate to build year-wise and instalment-level tables, then export to PDF.

Total Project Cost (₹ crores)

Govt Grant during construction (%)

Construction duration (years)

Concession (operation) period (years)

Interest rate (annual %, e.g., Bank rate + spread)

O&M cost per year (₹ crores)

Payment frequency per year during operation 2 (Semi-annual)1 (Annual)4 (Quarterly)

Split Govt grant equally over construction years? YesNo (custom)

Developer equity % of developer share (for display only)