Having my origins in East Africa, I know the distinct three groups that form the majority of the African population, South of Sahara. Bantus are fair colored Africans, and it is said that their origin is in South East Asia, probably the Maories, and the Aboriginies, from New Zealand and Australia. There is some semblance in facial markings, including broad noses, resembling people in Indonesia. The Hemaities are considered to have moved down south from today's Israel and are considered to be the children of Hem, son of Adam. Their ethnicity goes with Africans in Ethiopia, the Samburus, Masais, and the Zulus. Meanwhile, the Nilotics, are those who moved down the Nile Valley, and most of them have settled in and near Lake Victoria. Louis Leakey, an anthropologist, found fossils and tools at Olduvai and indicated the origin of man. But then, that is another question. There is a tribe in India called Habshis (I think in Gujarat) and their origin is in Africa and were taken by Muslim rulers as slaves and trained in warfare. Then this is another matter. As for the pygmies, and those on the West Coast of Africa, especially the Nigerians, Ghanians, et al, they seem more like the Nilotics and Hemaities. I don't think Professor Pitchappan did sufficient studies to establish his theory.