Abstract
Graphene is an atomic scale honeycomb lattice made of the carbon atoms. Graph theory has given scientific expert an assortment of helpful apparatuses, for example, topological indices. A topological index Top(G) of a graph G is a number with the property that for each graph H isomorphic to G, Top(H) = Top(G). In this paper, we exhibit correct expressions for some topological indices for para- line graph of honeycomb networks and graphene.