Indian meal vs meal

Indian meal and meal both are nouns.

Word	Noun	Adjective	Verb	Adverb
Indian meal	Yes	No	No	No
meal	Yes	No	No	No

As nouns, meal is a hypernym of Indian meal; that is, meal is a word with a broader meaning than Indian meal:

Indian meal: coarsely ground corn
meal: coarsely ground foodstuff; especially seeds of various cereal grasses or pulse

Indian meal (noun)	meal (noun)
coarsely ground corn	the food served and eaten at one time
	coarsely ground foodstuff; especially seeds of various cereal grasses or pulse
	any of the occasions for eating food that occur by custom or habit at more or less fixed times