The presence of genetic diversity in a cultivated and wild crop species is a pre-requisite for any crop improvementprogramme. Utilization of diverse parents in hybridization programme could leads to production of potential transgressivesegregants for yield and its attributing traits. Genetic diversity was studied in 78 green gram germplasm accessions, whichincluded both indigenous and exotic origin using Mahalanobis’s D2 statistics. In the present investigation with non-hierarchicalEuclidean cluster analysis, 78 genotypes of green gram were grouped into eighteen clusters. Out of these 18 clusters, XIVand XVIII clusters had single genotype (Coll.no NR/18-37 and Coll.no NR/18-06) revealed higher seed yield per plant,number of pods per plant and also observed to be early in maturity. Cluster XI and XIII were also had lowest number ofdays to flowering and days to maturity respectively could be regarded as good sources for earliness. Cluster II with twentythreeand cluster VIII with eight genotype were good source for number of seed per plant and number of cluster per plant.The accessions from these clusters could be utilized as parents for future breeding programmes to incorporate thesecharacters for which they have shown superiority. Hence, these accessions will be used as source of divergent parents inbreeding programme