HAPPIEST MINDS TECHNO LTD revenue for the last year amounted to 16.25 B INR, the most of which — 8.51 B INR — came from its highest performing source at the moment, Product Engineering Services, the year earlier bringing 6.92 B INR. The greatest contribution to the revenue figure was made by United States — last year it brought HAPPIEST MINDS TECHNO LTD 11.43 B INR, and the year before that — 9.73 B INR.