IRB INFRASTRUCTURE revenue for the last year amounted to 64.02 B INR, the most of which — 43.38 B INR — came from its highest performing source at the moment, Construction, the year earlier bringing 39.96 B INR. The greatest contribution to the revenue figure was made by India — last year it brought IRB INFRASTRUCTURE 64.02 B INR, and the year before that — 58.04 B INR.