It is smaller than a fully developed Maha. However, I have one tree that consistantly produces smaller Maha fruit just because....so I think there is a cultural consideration in evaluating whether your fruit is mature or not. The yellowing of the fruit is encouraging. Hard to tell more without seeing it in person and smelling it. If it is mature, you will shortly have a very nice aroma developing and the fruit shoudl ripen with at least decent flavor. I am not going to say categorically that it will be the ultimate Maha experience, but it could be, even under these accidental circumstances. You know, you are your own worst enemy.
Harry