Determine which collider was clicked

Hey folks,

short question (I hope) - I have a GameObject with two seperate PolygonColliders attached (for Mouse detection).

In the OnMouseDown method, I want to route to different methods depending on which collider was clicked. But I see no way to find out - any suggestions?

public enum ColliderPosition{None,Left,Right}

public class ColliderInfo:monoBehaviour{
    [SerializeField] private ColliderPosition colPos = ColliderPosition.None;
    private Action ActionOnClick = ()=>{};
    void Start(){
       switch(colPos){
           case ColliderPosition.Left:
                ActionOnClick = LeftClick;
                break;

            case ColliderPosition.Right:
                ActionOnClick = RightClick;
                break;
           } 
    }
    void OnMouseDown(){
       ActionOnClick();
    }
    void LeftClick(){}
    void RightClick(){}
}

The you just need assign the value in ColliderPosition in inspector