We are surrounded by numerous networks like social networks, the World Wide Web, road networks, power networks, epidemic networks, etc. Today, the world has become highly interconnected and hence more complex. Any complex phenomenon such as information cascades, climate change, pandemics, financial crisis, and blackouts can be visualised as networks. They encompass surprising secrets and they can be revealed with the help of network science theory. Network science (Theory of Complex Networks) is a very young multidisciplinary area of study which was developed to aid in modelling and understanding interactions in many complex systems like social groups, economic systems, biological processes, ecological webs, human brain connectivity, epidemic spreading and transportation systems. The theory as well as application of complex networks form a very relevant and broad area of study in recent times. The subscribers can access the recorded video classes of the LIVE session, for a duration of three months.