Screening tests on 162 tomato cultivars and hybrids conducted at the Division of Horticulture, Indian Agricultural Research Institute, New Delhi during 1967-8 indicated a high degree of resistance to root-knot nematodes in Nematex, VFN-8, 65N215-1, 65N255-1 and S1-120, under field and laboratory conditions. The degree of resistance varied with the species ofMeloidogyne. Nematex was immune toM. javanica, M. incognitaandM. arenaria. VFN-8, 65N215-1 and 65N255-1 were immune toM. incognitaandM. arenariaand resistant toM. javanica. S1-120, a commercial cultivar, showed a high degree of tolerance toM. javanica, M. incognitaandM. arenaria. The degree of resistance varied with nematode population density.