Basic concept of Graph theory is going to be discussed in this video lecture. br Graph theory is the study of representation of graphs and it is used in In mathematics and computer science. A "graph" is made up of "vertices" or "nodes" and lines called edges that connect them. A graph may be un-directed, meaning that there is no distinction between the two vertices associated with each edge, or directed graph where its edges may be directed from one vertex to another br In computer science, graphs are used to represent networks of communication, data organization, computational devices, the flow of computation, etc. br br Contact: Debarghya Mukherjee br Mobile: (+91)-9038787021 br Email: Debarghyamkr@yahoo.