Root-knot nematode, Meloidogyne is one of the most devastating nematode pests of crops with its more than 5500 host crops. This a polyphagus nematode pest distributed all over the tropical, subtropical as well as temperate regions of the globe. As more the number of species is pouring down under this genus Meloidogyne, proper identification is very much essential for its management either through conventional or biotechnological way. The nematode was described under different genus time to time by various authors. This article tries to compile the available literatures on the taxonomic categorization of this important nematode pest in order to reduce the confusion on its nomenclature.