Consider I am throw a ball vertically upward and it's shadow below it is considered as initial point.After travelling some vertical distance,It directly fell down on the ground on the same initial point.My doubt is why it is not fall on some other point on the ground due to the earth's rotation?

When you are talking about Earth's rotation, then you the ball and the Earth are rotating at the same speed. So the effect of rotation is cancelled as when Earth rotates by some angular distance(say X) you and the ball too rotate by same angular distance. So it is the same as if the Earth is standing still and you threw the ball upwards and it returned to the same point due to gravity