Genetic diversity in a population of 402 tomato lines assessed using multivariate analysis method indicated considerable diversity. The 402 lines were grouped into 4 clusters based on the similarities of D² values. Cluster II was the most divergent consisting of 51 genotypes/hybrids with potato leaf types and pink fruits (20/4, 20/5, 20/6. 20/2, AVRDC Alcobasa), which exhibited field tolerance to TLCV. While cluster I was the biggest having 217 genotypes/hybrids. which also consisted of commercial TLCV susceptible genotypes, viz. Rupali, DWD-1, DWD-2, Cross B. Marikrit. L-15, UC-204B and LE-79. The cluster III and IV were having 99 and 35 genotypes/hybrids respectively. Considerable diversity within and between the clusters were noted and it was observed that the characters like tomato leaf curl virus, fruit yield per plant and number of whiteflies per plant contributed maximum to the divergence. Therefore, selection of divergent parents based on these characters may be useful for heterosis breeding in summer tomato.