Abstract
Irregularities indices are commonly utilized for quantitative portrayal of topological structure of graphs which are not regular. As indicated by a broadly acknowledged bias, utilizing a topological descriptor (known as irregularity index of a graph) for that reason, the consequences of graph irregularity grouping ought to be predictable with our abstract decisions (instinctive inclination). In the instance of fundamentally graphs structures which are strongly similar, it is hard to choose the best possible irregularity index by which the irregularity positioning (requesting) of graphs can be acted in a steady way to our fundamental desires. In this work, we explore different prospects of developing alleged composite irregularity indices got as a component of conventional irregularity indices and test their prejudicial performance. In this paper, we will register certain irregularities of a nantube (HAC(5)C(7)).