trousers vs churidars

trousers and churidars both are nouns.

Word	Noun	Adjective	Verb	Adverb
trousers	Yes	No	No	No
churidars	Yes	No	No	No

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

trousers: (usually in the plural) a garment extending from the waist to the knee or ankle, covering each leg separately
churidars: tight trousers worn by people from the Indian subcontinent (typically with a kameez or kurta)

trousers (noun)	churidars (noun)
(usually in the plural) a garment extending from the waist to the knee or ankle, covering each leg separately	tight trousers worn by people from the Indian subcontinent (typically with a kameez or kurta)