The growth picked up the pace from 2.8 per cent year on year in the second quarter.
The economy also showed 1 per cent growth from the second quarter.
In the quarter, the public sector investment expanded 15.9 per cent on year. However, private investment contracted further; the construction investment index declined 0.3 per cent after 2.7 per cent increase in the second quarter. The manufacturing production index contracted 6.1 per cent on year.