Midfilder Humphrey Mieno put the league champions ahead on the fourth minute before striker Ephrem Guikan doubled the lead on the 27th minute.
Things would turn around in second half as the Sugar millers pushed for what they considered as a good result. Two goals in second was enough to put things level and earn them a worthy point.
The host team used their numerical advantage after custodian Boniface Oluoch was red cared to reduce Gor side to 10 men.
Despite dropping two points, Gor Mahia are still at the top of the log with 26 points and yet to be beaten in a league match this season.