cordial labelling of molecular structures and labelled topological indices of molecular graphs; a qspr model

In the study of graph properties, topological indices and graph labelling are both enormous topics. in this paper, we connect the ideas of topological indices with graph labelling, resulting in a number of novel topological indices to study the labelled graphs. we present new topological indices for certain molecular graphs that admit cordial labelling in this article. through topological indices, graph theory is playing an essential part in qspr data analysis. in this paper, we consider the labelled square index sqi(g), labelled product index pi(g), labelled sum index si(g), labelled nirmala index ni(g ), labelled sombor index soli(g), labelled forgotten index fi(g) and cluster of all these indices.