@KPR Thank you! Replaced the wheel this morning. I have noticed the protrusion earlier, but was not sure as it appear thin and I was worried whether it can hold up the car's weight. However my neighbor confirmed that is the right jack point. I am attaching a pic so that others who come looking for this info may get benefited The silver color in the pic is the bottom of car's sill. Next to it marked in red is the protrusion.