r/SouthAsianAncestry

Born in Southwest India.

The rigid caste system in Kerala appears to have become firmly established only around the 9th century, following the second Namboodiri migration. Christianity though not in the form we recognize today had already been present in Kerala for centuries before this. Therefore, there is little basis for claims of large scale Brahmin conversions during that earlier period.

As the caste system became more rigid, the Nasrani community also came to occupy a distinct position within it. It is well documented that these communities did not engage in significant missionary activity or widespread conversion. Instead, they largely maintained a degree of social exclusivity while adopting several Brahmanical customs. The Christianity that existed in Kerala before the arrival of the Portuguese was a distinctive tradition shaped by Dravidian and Persian influences, and possibly Gnostic currents. It represented a unique expression of Christianity that did not fit neatly into later Western theological or ecclesiastical categories.

Only after the arrival of the Portuguese did large-scale conversions begin. At the same time, Christianity in Kerala underwent increasing Latinization, with Western theological and ecclesiastical influences becoming more prominent. As the Portuguese converted people from a wide range of castes, older Nasrani families sought to preserve their distinct social status. In this context, the narrative of Brahmin ancestry appears to have gained prominence, particularly among influential families such as the Pakalomattam family. Such claims may have served to reinforce their prestige and legitimacy within the community.

The evolution of the Thoma Parvam (Songs of Thomas) is also significant in this context. The oral traditions and folk songs describing the conversion of local kings and Brahmins such as the Margamkali Pattu and Thoma Parvam were only systematically compiled, written down, and popularized between the 16th and 17th centuries, precisely during the Portuguese and post-Portuguese period. Most notably, they were compiled by Thomas Ramban, who claimed to be rewriting an older palm leaf manuscript preserved through 48 generations of his family. During this process, these oral traditions were shaped into a detailed, dramatic, and miraculous hagiography.

It is within these written traditions that we encounter narratives such as the arrival of St. Thomas in the first century, the miracle at Palayoor, the establishment of the Ezhara Pallikal (Seven and a Half Churches), and the ordination of the aristocratic lineages such as Pakalomattam, Sankarapuri, Kalli, and Kalyankal.

The post is intended as a point for academic discussion.

Ran Qpadm using genoplots admixtools2 on my own full coverage wgs file and results are posted. Of note i8726 is also known as indus_low_aasi. I get best p-values, lowest chi-squared and lowest worst z-score using the Kazakhstan_andronovo.sg sample however it’s only one individual. I get similar results using lba srubnaya.sg which is twelve individuals. Right pops are also shown for reference.

23&me and harrapaworld results

My own results, Paternal Haplogroup- JL24 Maternal Haplogroup- U7

Saw this model somewhere, so I used the same model, I picked this one after rotation Whatever passing results I got

How accurate are Helixline results?(I'm a bit on skeptical side) There's a clear discrepancy when computed with the GEDmatch (HarappaWorld) calculator. I took my autosomal DNA test with FTDNA.

(Apparently I'm Bengali according to helixline report)

Finally got both parents done, seems like my dad has pretty high SE Asian but somehow no yellow river

The Steppe + ANF element is not secure and is likely inflated due to errors with the AASI Simulated coordinates. In-fact, these populations likely have no Steppe admixture at all, possessing only AASI, Iran_N, and a little ANE admixture.

Although there are populations in India with less West Eurasian (Such as the Munda populations of Orissa/Jharkhand), those groups have 10-30% Austroasiatic ancestry, whereas these groups are of pure AASI East Eurasian ancestry.

It should also be noted that the AASI of these groups is not the same as the AASI of the non-tribal populations. These are isolated tribes with a very peculiar shift in their AASI, which is shifted more towards Hoabinhian than the regular AASI is.

Hi,

I am curious about my ancestry. I was adopted from Kolkata. Can someone help me understand my 23andme results and the gedmatch calculators, I used Harappa and K23b. My mtdna is D4q.

These are 2 Sino-Tibetan Magar or Mangar tribe sample, Thapa surname from West Nepal. Widely found in Nepali Gurkha forces all around the world. Thapa is a typical Nepali surname shared by many.

I am amateur. I tried this and they came out as 80% East Asia and 15% AASI and some spillovers. They get 16-18% S-Indian over 75-80% East Asian components in Harapaworld.

Other model gave 85-95% Nepali Sino-Tibetan + 5-15% Nepali Pahadi Dalit or Dravidian Paniya. Mostly East Asia and high AASI. How to model it?

Can anyone help? plz share.

Magar_Thapa_02,0.0164,-0.3949,-0.0188,-0.0246,0.0181,0.0172,-0.0008,-0.0007,0.0099,0.0156,-0.0646,-0.0079,0.0084,0.0005,-0.013,-0.0067,0.0033,0.0009,-0.0025,0.0032,0.0118,0.0114,0.004,0.0044,-0.0009

Magar_Thapa01,0.0176,-0.375,-0.0268,-0.0134,0.0153,0.018,0.0011,0.0065,0.0175,0.0161,-0.0586,-0.0077,0.006,-0.0027,-0.0098,-0.0064,0.0048,-0.003,-0.0081,0.0065,0.0029,0.0208,0.0031,0.0031,0.0209