Call touchUp() programattically for sprite in LibGDX

I’m trying to call touchUp() for a sprite i’ve created in my app.

i’m getting success but the co-ordinates do not match while i call it manually.

final int x = (int)mySprite.getX() + 10;
final int y = (int)(Gdx.graphics.getHeight() - (mySprite.getY() - 5));

touchDown(x, y, 0, 0);

this code calls method perfectly but positions do not match. x and y values that i get in touchUp() method is different. it call touch up event of another sprite.