Dravidian vs Tulu

Dravidian and Tulu both are nouns.

Word	Noun	Adjective	Verb	Adverb
Dravidian	Yes	No	No	No
Tulu	Yes	No	No	No

As nouns, Tulu is a hyponym of Dravidian; that is, Tulu is a word with a more specific, narrower meaning than Dravidian:

Dravidian: a member of one of the aboriginal inhabitants of India
Tulu: a member of a Dravidian people living on the southwestern coast of India

Other hyponyms of Dravidian include Badaga, Gadaba, Gond, Canarese, Kanarese, Kolam, Kota, Kotar, Kui, Malto, Savara, Tamil, Telugu, Toda.

Dravidian (noun)	Tulu (noun)
a large family of languages spoken in south and central India and Sri Lanka, as well as overseas in Malaysia and Singapore	a Dravidian language spoken by the Tulu
a member of one of the aboriginal inhabitants of India	a member of a Dravidian people living on the southwestern coast of India