The Nine Unknowns | Fields of knowledge 1

What are the nine fields of knowledge of the nine unknowns? Are these knowledges still used in this era? How the ancient India was more developed than that of todays India? Know everything about the Nine Unknowns. connect Mail: indiaunveiledpodcast@gmail.com I.G: indiaunveiled.podcast scripting: https://www.linkedin.com/in/lavisha-gupta-544aaa304?utm_source=share&utm_campaign=share_via&utm_content=profile&utm_medium=android_app