well that is a particular group. for example the people of Cameroon aren't in the same spot as people in the Congo. But the Andamanese have been there since the first migrations... the Islands are actually called the Andamanese island of india.What few interactions? be specific. How did the Andamanese turn into the 1 billion Indians we see today? At appox. what time period in human history did this happen?
Lucky for them they were subjected to gross cultures from Europe, people mixed with too much gross Neanderthal DNA, random Eurasian languages and other BS that eventual causes mental damages- that would make them currently argue against their African identities in 2013. If they were not able to remain geographically separated for most of history then they probably would be talking about how a move away from tropic caused skin changes and probably would claim that African roots has little to no effect on their overall identity.