Sethu Madhavan. The Tamils in Tamil Nadu may be from the Deccan. BUt not the Eelam Tamils. They are predominanlty a mixture of Cholas(Vellalar) and older native Tamils, who are closely related to the Chera inhabitants of present day Kerala. This is the reason they are culturally, like the Sinhalas closer to Kerala amd at times tp partes of Southern Tamil Nadu (where this Deccan influence and origin is negligible), than to present day Tamil Nadu. The is why the Eleam Tamils are strongly Saivaite. Their culture very matriarchical ( copmared to the Patriarchical culture of present day Tamil Nadu). Their spoken Tamil is vary archaic far more purer has far less Sansrit word and is much closer to the Changam Tamil. The place names of present day Tamil Nadu is very Sanskrtised, whereas the Tamil plcas names in Sri Lanka are derived from Old Tamil.( including many Sinhala plce names). The DMK is largely made up and started by Tamilians of Telugu ( Deccan ) origin. That is the reason. The most DMK members do not like the elite of the original Tamils. The Vellalars and teh Tamil Brahmins. The Telugu Nayakas took over the lands of the Vellalar land owners especially in northern Tamil Nadu. Other than pets of southern Tamil Nadu. Lots of these Vellars were made destitute and many came to the Jaffna region to be amongst their fellow Vellalar. Jaffna is a Vellalar stronghold. These Vellalar refugees by inermarrying with the local Vellalars infused their hatred into the local Eelam Tamils
