The interaction between two arbuscular mycorrhizal fungi i.e. Glomus intraradices, Glomus mosseae and a known biocontrol Trichoderma viride in relation to disease control and plant growth in lentil was studied. Maximum per cent seed germination (89.33%) was recorded in seeds treated with Fusarium oxysporum f.sp. lentis + T. viride + G. intraradices. All inoculated plants yielded greater biomass as compared to non – mycorrhizal and plants infected with F. o. f.sp. lentis. On the basis of observation, root weight (4.28 g) and shoot weight (20.10 g) were maximum in plants treated with F. o. f.sp. lentis + T. viride + G. intraradices.