Caribj is going to tell you a newly indentured to the plantation would never speak to or befriend an African, he came off the boat prejudiced. Caribj doan know that in Southern India there are lots of Africans living there for centuries who can never avoid the Indian population.
And in fact evidence is that the indentures quickly decided that the blacks were no better than the Dalits of India. Research the meaning of the word "dougla".
Many Indo women were impregnated by white men on the estates yet the insult directed at those of mixed origin were towards those who had a black parent.