The CBI put Q1-3 growth rate, excluding oil production, at 4.1%.
The report shows that "industries and mines" sector had the highest growth in the period with 4.6%.
Agriculture, services and oil sectors expanded by 4.1%, 3.7% and 1.3% respectively, Financial Tribune reported.
The central bank's report came after the Statistical Center of Iran put GDP growth at 4.4% for the same period. Excluding oil production, SCI said the economy grew by 4.7%.