Hi Barbara here - I have just got this fist hand information from Prabhakar about people from south India who went to Indonesia as Indentured Labourers.
Prabhakar Dhoopati "Almost everyone spoke Tamil and merged with the majority Tamilians.
So is the case with Telugus. All of them were called 'kalingas'. There were marriages (as all of them were non-brahmins and were from farming communities) among these linguistic groups and the subsequent generation hardly knew their roots. This I learned when I was in Medan, North Sumatra, Indonesia. I really don`t know to what extent this is authentic, though I met a lot of Telugus who called themselves Naidus, married many Tamilians.
Does anyone have any comments on this information and does anyone know if people from Kerala [Malabar] went to Indonesia as Indentured Labourers?