Dravidians are the most ancient ethno-linguistic group of South Asia. The migrations of the Indo-Aryans pushed them deeper into the subcontinent. But a few isolated groups still remain to tell the tale. They may not have the Ancestral South Indian (ASI) of most of the Dravidian people, but the Brahui language still spoken in Balochistan in the areas around Quetta, is tell tale evidence of our history. The Brahui is an ethnic group residing in Balochistan and Sindh, in Pakistan. Their distant linguistic cousins reside in the states of Karnataka and Kerala, Tamil Nadu and Telangana in India. The Brahui are an excellent example of this phenomenon. A Dravidian ethnic group residing in the deserts of Sindh and Balochistan in Pakistan, they share DNA with their Sindhi, Balochi and provincial neighbours of different ethnicities. But their nearest cousins are located in the states of Karnataka in India. Causal relationships between ethnic groups in the Indian Subcontinen...