outcast vs Harijan

outcast and Harijan both are nouns.

Word	Noun	Adjective	Verb	Adverb
outcast	Yes	Yes	No	No
Harijan	Yes	No	No	No

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

Other hyponyms of outcast include heretic, misbeliever, religious outcast, leper, untouchable.

outcast (noun)	Harijan (noun)
a person who is rejected (from society or home)	belongs to lowest social and ritual class in India

outcast (adjective)	Harijan (adjective)
excluded from a society