The affinity of Sanskrit, Tamil Culture with Sanatana Dharma is very close.
The Tamil kings are referred to in the Vedas, Puranas, Ramayana and Mahabharata.
They predate even Lord Rama.
Tamil ings were present during the Swayamvar of Sita,
They were present during the Swayamvar of Nala and Damayanthi.
Nala was the ancestor of Lord Rama and legends have it that Nala visited Thirunaru, Pondicherry, to be relived of Shani(Saturn’s) effect.
Though there are many anecdotes of Tamil Kings, who trace their lineage to Solar Dynasty, two stand out.
One is Manu Needhi Chola,means, one who effectively enforced the rules elaborated by Manu.
He ran his son over by his chariot,(he was riding it) because a Cow complained to him by ringing the Bell he installed to hear people’s grievances and informed him that his son ran over its calf.
Manuneedhi Chola atoned it by running his chariot over his son!
The episode is found in the Hitti Civilization-they were the forerunners of the Anatolian Civilization.
Another is Emperor Sibi.
Chakravarthy Sibi is mentioned in the Rig Veda, Ramayana and Mahabharata , apart from references in the eighteen Puranas.
Thereafter, the king when recovered from loss of consciousness and again returned to his breath, called that charioteer for the purpose of getting the report on Rama. Then, Sumantra, who joined his palms in reverence, approached the monarch who was repenting about Rama alone, filled with pain and sorrow, advanced in age, greatly anguished, sighing like a newly caught elephant and reflecting on something as a sick elephant.
The king, having great distress, spoke to Sumantra, whose body was covered with dust, his face filled with tears, who was miserable and who approached near him (as follows):” Oh, Sumantra! Where can Rama the virtuous man abide, taking refuge at the root of a tree? What that Rama, who enjoyed very many pleasantries, can eat now? Oh, Sumantra! How can Rama the prince, who was habituated to good beds, sleep with such discomfort on a floor like an orphan? Footsoldiers, Chariots and elephants used to follow whenever Rama was marching ahead. How such a man can take shelter and stay in a forest devoid of people? How Seetha Rama and Lakshmana entered forest filled with wild animals and black snakes? How those princes with Seetha the delicate and the poor lady went on foot, after descending from the chariot? You have seen my sons entering the forest, as though divinities of Aswini had entered the Mountain-range of Mandara. You are indeed lucky. After reaching the forest, what words did Rama speak? What did Lakshmana speak? What did Seetha speak? Tell me where Rama sat, slept and took food. By hearing these things, I shall survive, as Yayati survived in the company of saints.”
Comment: King Yayati, when doomed to fall from heaven requested Indra to cast his lot with saints. He was accordingly sent down to a spot on the earth, where four ascetics- Astaka Pratardana, Vasuman and parva King Sibi had been practicing austerities, and had discourse with them- Mahabharata, Adi Parva.
Sibi was son of King Usinara and queen Madhavi. He was a righteous king. Indra and Agni wanted to test his integrity and so they took the form of birds hawk and dove. The hawk chased the dove and it sought protection from Sibi. Sibi was ready to give the hawk anything except the dove. But the hawk (Indra) was so adamant demanded either the dove or equal measure of meat from the king. When the king cut his flesh and placed it on one pan and the dove on the other pan, it was never equal. The king himself mounted the balance to give himself for the sake of the dove. But Indra and Agni revealed themselves and blessed him. There is another story of Sibi’s eye donation in the Buddhist Jataka.
This story is sung by several poets and they are in Purananuru verses 37, 39, 43 46 and 228. Sibi’s wards were called Saibya in Sanskrit. Sangam Tamil poets Tamilized this word and called the Chozas Sembian. This word is in other Sangam books Aka Nanuru (36) and Natrinai (14)…
The story of Sibi Chakravarthy is so famous that it was sculpted in the Barhut, Nagarjunakonda ,Amaravati bas-reliefs and Borobudur in Java,Indonesia (see Boropudur sculpture above).
Tamil epics Silappadikaram and Manimekalai gave more details about this link. Since the oldest part of Sangam Tamil literature mentions it no one can reject it. The link is confirmed with other stories as well.
Sibi ruled from the north west of India. There was a Sibi puram on the banks of river Chenab in Punjab. Sibi clan is mentioned in Rig Veda and Brahmanas. Panini referred one Sivapuram may be the same Sibipuram’
Sibi is in Nort west of India, currently in Pakistan.
There are views that Sibi ruled from there and that the Tamils were from North India.
Considering the differences between the Tamil Culture and Sanatana Dharma, thought Tamils were a part of Sanatana Dharma and the archeological evidence,Literature, the structural difference between Sanskrit , I am of the opinion that it is not so.
In the case of Sibi. it is probable that Sibi had the city of Sibi as a second capital.
Sibi (Balochi: بلوچ ) (Urdu: سِبی) is a city of Balochistan province of Pakistan. The city is located at 29°33’0N 67°52’60E at an altitude of 130 metres (429 feet) and is headquarters of the district and tehsil of the same name. According to the 2001 census of Pakistan, the population of Sibi is 52,100..