matsyendra vs asana

matsyendra and asana both are nouns.

Word	Noun	Adjective	Verb	Adverb
matsyendra	Yes	No	No	No
asana	Yes	No	No	No

As nouns, asana is a hypernym of matsyendra; that is, asana is a word with a broader meaning than matsyendra:

matsyendra: (Hinduism) a religious posture
asana: (Hinduism) a posture or manner of sitting (as in the practice of yoga)

matsyendra (noun)	asana (noun)
(Hinduism) a religious posture	(Hinduism) a posture or manner of sitting (as in the practice of yoga)