Jewish Aryans who had arrived before St Thomas seeking a place to settle in, first in BC 722 and then BC 586 from the middle east via Persia and the Khyber and Bolan passes of the Hindukush mountains, the Greeks who were knowledge seekers and global wanderers that arrived in 300 BC after the conquest of Alexander and the Latin speaking Romans who came for trade from nearly 150 BC, added up as a significant lot among the local Thamizhar. They were commonly called Yavanar in Thamizh. Thamizhar (and the Mar Thoma Christians) needed a language to communicate with the conglomerate of these foreigners for trade as well as mission reasons. They cooked-up (well put together or samaitha kiriyai) a dialect which was a mixture of the languages of the foreigners with Thamizh as an integral component. This is Sanskrit (Samaskritham). It had no original script. (Brahmi and Vattezhutthu were the living scripts of the time). Devanagari came in later as the script if Sanskrit – late in the second and third century AD until which time Sanskrit was only a spoken language.

Interestingly the first known Sanskrit rock inscriptions (in Brahmi script?) belong to as late as 150 AD time period. Thamizh rock inscriptions and palm leaf writing appear far earlier than this period. Archaeologists and etymologists show proof of the existence of Thamizh inscriptions even during the early Indus valley civilization period around 1500 BC. Some of them also have proofs of the Sumerian script being the earliest Thamizh script.