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In page Yellow-browed bulbul:

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The yellow browed bulbul was originally described in the genus Trichophorus (a synonym for Criniger) in 1839 by T. C. Jerdon on the basis of specimens from the Wynaad region and given the original binomial (or protonym) of Trichophorus indicus. Formerly, the yellow-browed bulbul was classified in the genus Iole as two separate species but a study[1] determined that this species is exceptional and it is now placed in the monotypic genus Acritillas.[2][3][4] Some authorities have included the yellow-browed bulbul in the genus Hypsipetes but a 2018 molecular phylogenetic study indicated the nearest living relative as Hemixos flavala.[5]