The Nilgiri Marten Martes gwatkinsii is a rare and little known species endemic to the Western Ghats mountain range of Southern India. Information about its distribution and occurrence is largely lacking. This paper collates information about Nilgiri Marten presence in the Palni Hills in Tamil Nadu state and presents new records of Nilgiri Marten occurrence from Karnataka state as part of a compilation of opportunistic sightings of this species throughout the Western Ghats.