The misconception between Guyanese Indians and Indians from India aka (South Asians) are Indians by nationality and Guyanese are Indian by race.
Indians have a ranking. At the top are those born in India. Just below are Indians born overseas to people born in India (NRI's).
Then there are those of the (inferior) indentures ranked by the degree to which they have retained Indians culture. East Africans, Fiji, Mauritius, and South Africans.
Caribbean Indians being ranked at the bottom as they are seen as having lost their culture, desperately clinging on to 19thC peasant concepts of Indian culture and what they glean from Bollywood.
I know that Yuji/Skeldon and others cried bitter tears when they migrated to North America and discovered that Asian Indians see them as "Hindu Negroes with straight hair".