Hero MotoCorp is estimated to have lost INR 80-90 million in revenues till January 25 as the production slowdown by workers at its Gurgaon plant entered the third day. Between January 23 and January 25, Hero MotoCorp is expected to lose production of 1,500 to 1,800 scooters, which are made at one of the three lines at Gurgaon where workers have opted to slow down output in order to protest against the lower wage hike offer by the Hero management.