Three new species in the Tetramorium tortuosum group, T. alii, T. binghami and T. hitagarciai, are described and illustrated from the Western Ghats, India. In addition, information on the remaining six know species in this group — T. belgaense Forel, 1902, T. keralense Sheela & Narendran, 1998, T. pilosum Emery, 1893, T. tortuosum Roger, 1863, T. urbanii Bolton, 1977 and T. yerburyi Forel, 1902 — is provided along with the key to all the taxa in the group. The tortuosum group is the largest of the species group with workers characterized by 11-segmented antenna from the region. Morphology and group affinities of the species are discussed, along with their distribution. However, due to sampling constraints and still insufficient taxonomic knowledge the actual diversity is yet to be properly explored.