Ancient Drilling Technology - Mahabalipuram, India

A few videos back I showed you the ancient drilling technology in Thanjavur with minute holes that were just 3 millimeters wide. Today, we are in Mahabalipuram in India, and I am going to show you some ancient drilling that’s even stranger. How about drilling a giant hole that is 8 feet wide on a granite rock? As we know Granite is one of the hardest rocks in the world and today we use diamond tipped tools and laser to make drills in it. How could they drill a humongous hole like this 1300 years ago? W