The beginning of our family roots can be traced back to the beginning of Christianity in Kerala with the arrival of St Thomas, one of the twelve disciples of our Lord Jesus Christ, at Muziris on the shores of Kerala in 52 AD. This place is today known as Kodungalloor. To quote from the research papers of Wikipedia.org, “The Saint Thomas Christian tradition has historically been, as recorded by scholars, that St. Thomas converted 12-13, in some accounts 32, Brahmin (not namboothiri) families namely Pakalomattom, Sankarapuri, Kalli and Kallikav from which many St Thomas Christians particularly those from prominent families have traditionally claimed descent. There is no contemporary evidence showing that Thomas had been in the sub -continent, but it was possible for an Aramaic-speaking Jew from Galilee to make such a trip to Kerala in the 1st century. The Cochin Jews are known to have existed in Kerala around that time. The earliest known source connecting the apostle to India is the Acts of Thomas, likely written in the early 3rd century, perhaps in Edassa. While some historians have contended that there was no significant Brahmin presence in Kerala in the first century A.D and have disputed the historicity of the Brahmin conversion tradition, there is much evidence that some St Thomas Christians observed Brahmin customs and were granted privileges usually reserved for Brahmins including the wearing of the sacred thread and having a kudumi. The argument against Brahmin conversion should be viewed in the the context of the Namboothiri group which arrived in Kerala much later in 7th or 8th century. The medieval historian Pius Malekandathil believes these were customs adopted and privileges won during the beginning of the Brahmin dominance of medieval Kerala. He argues that the St Thomas Christians, integrated with Persian Christian migrant merchants in the 9th century, had become a powerful trading community by this time and were granted the privileges by the Brahmins and the Hindu rulers to promote revenue generation and to undermine Buddhist and Jain traders who rivalled the Hindus for religious and political hegemony in Kerala at the time. St Thomas came to Palayur after arriving in Kodungallur. This area was becoming a centre of Jains and Budhists. The brahmins were not dominant there at that time. The Namboothiris, who were Maratha brahmins, came to Kerala and became a dominant group by 8th century after the decline of Jainism and Budhism in Kerala.
Some writers believe that the original converts would have included the Jews already present in Kerala at that time. Indeed, a version of the Songs of Thomas or Thomma Parvam, written in 1601, is believed to be a summary of a larger and older work, narrate the conversion of 40 Jews along with the Brahmins and the local King at Kodungallur by St Thomas. The Thomma Parvam further narrates St Thomas's mission in South India and states that before his martyrdom at Mylapore in present-day Chennai, Tamil Nadu, he had converted Brahmins, Kshatriyas, Vaishiyas, and Shudras. The traditional belief of the arrival of a foreigner by the name 'Thomas' who debated with the Brahmins and converted many prominent people, including a King is part of Namboothiri Brahamin folklore and is found in the important Namboothiri Brahmin 17th century tract the Keralolpathi”