Indian Singaporean and Malaysian Indian DNA: A Diaspora Ancestry Guide

Many Indian families in Singapore and Malaysia cannot name the village their great-grandparents left. The family story often begins on a rubber estate in Perak or on Serangoon Road, and the generations before it have faded into "somewhere in Tamil Nadu" or "somewhere in Punjab".

DNA can help fill in some of that picture, but only if you read it with the history in mind. This guide is for Indian Singaporeans, Malaysian Indians and the Chitty families of Melaka. It covers the long sea links between South India and the Malay world, the colonial migrations that built the modern communities, what peer-reviewed genetics says, why 23andMe and AncestryDNA give the results they do, and how to get a sharper, South Asia focused reading from the raw file you may already have.

A thousand years of sailing across the Bay of Bengal

Indian contact with the Malay Peninsula is far older than the British. For centuries before the colonial era, merchants from the Coromandel Coast and Kerala sailed the monsoon winds to the ports of the Strait of Malacca, trading textiles for spices, camphor and gold. Hindu and Buddhist ideas, Sanskrit and Tamil words, and South Indian styles of kingship travelled with them. Our guide to Indian Ocean trade and DNA covers that wider story.

The Cholas and Kadaram

The best-known episode is a military one. In 1025 the Chola emperor Rajendra I launched a naval campaign against Srivijaya, the maritime power that controlled the Strait of Malacca. The Tanjore inscription records that his forces captured the Srivijayan king Sangrama Vijayottunggavarman and carried off treasure, and it names Kadaram, which historians usually identify with Kedah in today's Malaysia, among the places conquered (background on the Chola campaign).

War was not the whole relationship. About two decades earlier, a Srivijayan king had built the Chudamani Vihara, a Buddhist monastery, at the Chola port of Nagapattinam in 1006. After the campaign, Tamil merchant associations such as the Manigramam and the Ainnurruvar extended their reach into Southeast Asia. In other words, Tamil traders were part of the Malay world many centuries before anyone signed an estate labour contract.

For DNA, though, these medieval contacts matter less than they sound. A few merchants settling in port towns leaves little trace in a whole population, and for almost every Indian Singaporean and Malaysian Indian family the ancestors who matter genetically arrived in the 19th and 20th centuries.

The Chitty of Melaka: the oldest Indian community in the Straits

The exception is the Chitty, also spelled Chetti, sometimes called the Peranakan Indians. According to a history published by Free Malaysia Today, they are descendants of Tamil traders who settled in Melaka more than 500 years ago, with South Indian traders visiting the peninsula by the 15th century. The men married local women, Malays, Chinese, Javanese and Batak, and over generations the community stopped speaking Tamil, adopting Malay instead, while holding on to its Hindu faith (Free Malaysia Today, 2018). Their historic home is the Chitty village on Jalan Gajah Berang in Melaka.

Two points are often confused. First, the Chitty are not the same people as the Chettiars, the Tamil banking community who arrived under British rule. Second, the Chitty story is one of genuine mixing: unlike most later Indian migrants, Chitty families have centuries of Southeast Asian ancestry woven in. We come back to what that means for a DNA result below.

How the modern community arrived: estates, ports, banks and barracks

The large Indian populations of Singapore and Malaysia were built under British rule. A detailed account in the National Library Board's journal BiblioAsia describes several streams of migration, each with its own regions of origin and its own work (BiblioAsia, 2007).

Indentured and kangany labour

Most Indians came as labourers for plantations, roads, railways and ports. Under the indenture system, workers were bound to an employer for a fixed term, five years at first and three years after movement of labour to the Straits Settlements was legalised in 1872. Indenture was finally abolished in 1910.

From the later 19th century a second system took over: the kangany system. A kangany, a Tamil word for an overseer, was a trusted worker already on an estate who went back to South India to recruit people from his own area, often relatives and neighbours. It supplied much of the labour for Malaya's coffee and then rubber estates, and because it allowed families to travel together it shaped settled communities rather than temporary work gangs. Assisted emigration was banned by the Government of India in 1938, which ended the system.

Because the Malayan government allowed recruitment only from the Madras Presidency, the labour migration was overwhelmingly South Indian. BiblioAsia gives a striking figure: about 90 percent of labour migrants to Malaya were Tamil speakers. Telugus and Malayalees made up most of the rest, with Malayalees and Telugus prominent around Singapore's Tanjong Pagar docks and the railways.

Chettiars, clerks, police and traders

• Chettiars. The Chettiars, a Tamil community of bankers and financiers, were established in the Straits Settlements by the mid-19th century and became the most important money-lenders among Indians.
• Ceylon Tamils and English-educated South Indians. Many worked as clerks in government offices, on the railways and as teachers.
• Sikhs and other Punjabis. The first Sikhs arrived as policemen in 1879, and Punjabi Sikhs were widely employed as police, watchmen and caretakers. Indian sepoys also served with British forces in the Straits.
• North and West Indian traders. Gujaratis, Sindhis, Parsis and Marwaris came as merchants, many in the cloth trade.
• Convicts. From 1825 to 1873 Singapore was a penal station for Indian convicts, who built roads, bridges and St Andrew's Cathedral.

Indian presence in Singapore goes back to its founding year: when Stamford Raffles landed in 1819 he was accompanied by Narayana Pillai, a trader from Penang who went on to become Singapore's first building contractor and built the Sri Mariamman Temple.

Group	Main region of origin	Typical work in the colonial era
Tamil labourers	Madras Presidency (today's Tamil Nadu)	Rubber and coffee estates, roads, ports
Telugus and Malayalees	Andhra and Telangana; Kerala	Estates, docks, railways
Chettiars	Tamil Nadu	Banking and money-lending
Ceylon Tamils	Sri Lanka (then Ceylon)	Clerks, railways, teaching
Sikhs and Punjabis	Punjab	Police, guards, the army
Gujaratis, Sindhis, Parsis, Marwaris	Western and North India	Trade, especially cloth
Chitty (Peranakan Indians)	Tamil coast, settled in Melaka centuries earlier	Trade, later farming and clerical work

Indian Singaporeans and Malaysian Indians today, in numbers

Singapore

The Census of Population 2020 counted 362,300 Indian residents, 9.0 percent of Singapore's resident population (citizens and permanent residents), making Indians the third-largest group after Chinese and Malays. The Department of Statistics' General Household Survey 2025 puts the figure at 379,100, still 9.0 percent (Singapore Department of Statistics, key indicators of the resident population).

Language at home tells a story of its own. Among Indian residents aged 5 and over, English is now the language most often spoken at home, and its share keeps rising, while Tamil's falls:

Language most often spoken at home (Indian residents aged 5+)	2020	2025
English	59.2%	65.4%
Tamil	27.4%	23.0%
Malay	6.0%	4.9%
Other languages	7.3%	6.5%

Tamil remains one of Singapore's four official languages. For the 2020 census tables, the government explained that smaller Indian ethnic groups, each with fewer than 10,000 residents and under 3 percent of the Indian resident population, were combined so that only the four largest detailed groups were shown separately (written reply to parliamentary questions, July 2021). The point for family historians is simple: "Indian" on an identity card hides a great deal of diversity.

Malaysia

Malaysia's Population and Housing Census 2020 counted a total population of 32.4 million. In the ethnic breakdown published by the Department of Statistics Malaysia, Indians numbered 2.0 million, or 6.7 percent, after Bumiputera (69.4 percent) and Chinese (23.2 percent) (DOSM, Key Findings of the 2020 Census). Most Malaysian Indian families have been in the country for three, four or five generations, which is exactly why so many have lost track of the precise village in India.

If you want the country-specific practical details, such as currencies and how to gift a kit, see our page for Indians in Singapore and Malaysia.

What genetics says about Indian Singaporeans and Malaysian Indians

The ANI and ASI framework

To read any Indian DNA result you need one idea from population genetics. In 2009, Reich and colleagues, writing in Nature, analysed 25 Indian groups and found strong evidence for two ancient populations ancestral to most Indians today: Ancestral North Indians (ANI), who are genetically close to Middle Easterners, Central Asians and Europeans, and Ancestral South Indians (ASI), who are as distinct from ANI and from East Asians as those two are from each other (Reich et al., Nature, 2009).

They found that ANI ancestry ranges from 39 to 71 percent across Indian groups and is higher in traditionally upper-caste groups and Indo-European speakers. By implication, many Dravidian-speaking South Indian groups sit nearer the ASI end of that range, but there is wide variation between communities and within them. In 2013, Moorjani and colleagues used data from 73 groups to date the ANI and ASI mixture to roughly 1,900 to 4,200 years ago, and showed that India then shifted from a time when mixing was common to one where even closely related groups rarely intermarried, a shift they attribute to endogamy (Moorjani et al., American Journal of Human Genetics, 2013). That long history of marrying within the community is why fine-grained community comparisons are possible at all. Our explainer on ANI and ASI ancestry goes deeper.

The Singapore Indian genome study

The most direct evidence comes from Singapore. In 2014, Wong and colleagues published the Singapore Sequencing Indian Project in PLoS Genetics: deep whole-genome sequences of 38 Indian Singaporeans drawn from the general population (Wong et al., PLoS Genetics, 2014). The authors note that Asian Indians in Singapore are primarily descendants of immigrants from Dravidian-language speaking states of South India. Their main findings:

• South Indian genetic affinity. Compared with a reference panel of Indian groups, the Singapore samples sat with the South Indian groups rather than the North Indian ones, and the authors describe their genetic makeup as closely related to South Indians.
• High diversity. The samples showed greater genetic diversity within the population, and a higher ratio of heterozygous to homozygous genotypes, than other Asian populations in the comparison. That fits a community assembled from many different source groups in India.
• Small, model-dependent extra components. In the admixture model the authors preferred, the samples carried average components of about 7.1 percent assigned to European references, 4.3 percent to Malay and 1.3 percent to East Asian. The same samples showed a European component of about 53 percent in a simpler model, which is a useful warning: a label like "European" in a coarse model can capture the ancient West Eurasian-related ancestry that, as Reich showed, ANI shares, not recent European ancestors. A small Malay-like average across a group could reflect local family history or statistical overlap, and it says nothing certain about any one family.

We did not find a comparable published genome-wide study focused on Malaysian Indians. Because the colonial migration to Malaya came from the same South Indian regions, the Singapore study is a reasonable guide, but it is not Malaysian data, and we would rather say so than stretch it.

What about the Chitty?

We found no published genetic study of the Chitty Melaka community. History suggests what to expect in principle: a South Indian, largely Tamil, paternal heritage combined with centuries of marriage into Malay, Chinese, Javanese and Batak families. A Chitty family's DNA could therefore show substantial South Indian ancestry alongside East or Southeast Asian-related ancestry. But that pattern would only be consistent with Chitty history, not proof of it, since many Malaysian and Singaporean families of all backgrounds have mixed ancestry.

What 23andMe and AncestryDNA show Indian Singaporeans and Malaysian Indians

23andMe

23andMe's Ancestry Composition splits Central and South Asia into a small number of populations. After its 2024 update, the list was Central Asian; Bangladeshi and Northeast Indian; a Central and Southern Indian group; Gujarati Patel; Kannadiga, Tamil, Telugu and Sri Lankan; Malayali; and North Indian and South Pakistani (23andMe, July 2024). In practice, a Tamil Malaysian and a Telugu Malaysian land in the same population, and DNA the model cannot place confidently goes into a broad bucket, the "Broadly South Asian" label that so many families see. Our guide to fixing "Broadly South Asian" explains why.

In January 2025 23andMe added 44 South Asian "genetic groups", which show connections through shared ancestors rather than percentages. South Indian examples include Chettinad, the Coromandel Coast, the Northern Tamilnad Plains, Southern Tamilnad Plains and Tamilnad Uplands, three Kerala groups, and groups for the Krishna and Godavari Deltas and the Telangana Plateau (23andMe, January 2025). These can be genuinely useful hints, but they sit beside, not inside, your ancestry percentages.

AncestryDNA

AncestryDNA's Ancestral Regions 2026 white paper, dated October 8, 2026, describes a reference panel of more than 295,000 samples representing 302 regions, up from about 185,000 samples and 146 regions (AncestryDNA white paper, 2026). The list now names many Indian regions. For South India it includes Tamil Nadu, Kerala, Central Kerala, Telangana and Andhra Pradesh, Andhra Pradesh, Andhra Pradesh and Southern Karnataka, Coastal Karnataka and Sri Lanka, plus a region listed as Indian Ocean with the qualifier Tamil. North Indian families will find several Punjab regions, Gujarat and Sindh among others. The white paper explains that its panels are built largely from networks of Ancestry's own customers who share DNA, so how finely your family is placed still depends on who has tested.

This is a real improvement, so check your updated estimate if your family has an AncestryDNA account. Your raw file does not change when the estimate is updated, so it remains just as useful for an upload elsewhere.

What you might see	What it usually means
"Broadly South Asian" on 23andMe	The model could not place that DNA more precisely with its reference data
"Kannadiga, Tamil, Telugu and Sri Lankan" on 23andMe	South Indian ancestry, but this one population cannot separate Tamil from Telugu or Sri Lankan
Tamil Nadu, Kerala or Telangana and Andhra Pradesh on AncestryDNA	A regional match from the 2026 update; read it as a region, not a community
A few percent Southeast or East Asian	Possibly real local ancestry, possibly noise; long continuous segments are more convincing than scattered ones
A few percent "European" or Middle Eastern	Often the ancient West Eurasian-related ancestry most Indians carry, not a recent European ancestor

What a Helixline upload adds for Indian Singaporean and Malaysian Indian families

You do not need a new test. Your existing raw data file from 23andMe (v3, v4 or v5), AncestryDNA, MyHeritage, FamilyTreeDNA or LivingDNA is re-analysed against a reference panel built around South Asia: 7,600+ global reference samples, including 140+ South Asian community reference groups. The Upload Ancestry report includes:

• A state-level ancestry breakdown, so a family that only knows "Tamil Nadu" can see how its profile relates to Tamil Nadu, Kerala, Andhra Pradesh, Karnataka and other states.
• Community similarity comparisons with a closest-match shortlist. For the communities that shaped Singapore and Malaysia, reference groups in our panel include Chettiar/Nattukotai, Pillai, Mudaliar, Thevar/Maravar, Vanniyar, Nadar, Gounder/Kongu Vellalar, Paraiyar, Pallar/Devendrakula Vellalar, Tamil Brahmin (Iyer and Iyengar), Tamil Muslim / Labbai and Tamil Christian from Tamil Nadu; Kamma, Reddy, Kapu, Naidu, Telugu Brahmin, Mala and Madiga from the Telugu states; Nair, Ezhava/Thiyya, Syrian Christian, Mappila Muslim and Namboothiri from Kerala; and Jat Sikh, Khatri Sikh, Ramgarhia Sikh, Mazhabi Sikh, Punjabi Khatri and Punjabi Arora from Punjab. These are similarity comparisons, never a verdict on identity or caste.
• ANI and ASI composition, plus steppe and AASI components, and chromosome painting across 22 autosomes, which helps you tell a real segment of recent Southeast Asian or other ancestry from statistical noise.
• Y-DNA and mtDNA haplogroups, if your raw file includes those markers.

Two honest limits. Our panel has no separate Chitty Melaka group and no separate Sri Lankan Tamil group, so a Chitty or Sri Lankan Tamil family will be compared with the Indian groups above, and the Chitty are a different community from the Chettiar/Nattukotai reference group. Because the analysis draws on 7,600+ global reference samples, not only South Asian ones, ancestry that is not South Asian has somewhere to go instead of being forced into an Indian label.

Upload Complete adds 30+ wellness traits, carrier screening for conditions common in South Asian populations, pharmacogenomics insights and downloadable PDF reports. These are informational and wellness insights, not a diagnosis.

Plan	Singapore	From Malaysia	Good for
Upload Ancestry	S$34	S$34 or US$25	Community comparisons, state-level breakdown, ANI/ASI, haplogroups
Upload Complete	S$68	S$68 or US$50	Everything above plus wellness traits, carrier screening, pharmacogenomics and PDFs

Helixline does not charge in ringgit, so Malaysian customers choose Singapore or US dollars, whichever their card handles better. PayPal is also offered and charges in US dollars. Results are typically ready within 1-2 days of the upload.

How it works

1. Choose your plan and currency and pay on helixline.in/upload.
2. We email you a link to your dashboard.
3. Sign in with the same email and upload your unmodified .txt, .csv or .zip raw data file. It takes a couple of minutes.
4. Your results are typically ready within 1-2 days.

If your file cannot be processed, or you change your mind before analysis starts, you get a full refund (see the upload terms). Your data is encrypted, stored in India under the Digital Personal Data Protection Act 2023, and never sold. You can delete your uploaded raw file from your dashboard at any time.

How to download your raw DNA data

Menus change, so treat these steps as a guide and check the company's help pages if a label looks different. A laptop or desktop works best.

23andMe:

1. Sign in on the web, open the profile menu, choose Settings and scroll to the 23andMe Data section.
2. Click View, confirm the profile's date of birth and submit the request.
3. When the email saying your download is ready arrives, follow the link and download the .zip file.

AncestryDNA:

1. Sign in, open the DNA tab and go to Settings for your test.
2. In the Download or Delete section, choose Download DNA data and verify with your password or an emailed code.
3. Open the confirmation email from Ancestry and click the download link.

MyHeritage and FamilyTreeDNA: on MyHeritage, open DNA, then Manage DNA kits, and use the menu next to the kit to download; the emailed link expires, so act promptly. On FamilyTreeDNA, download the main autosomal raw data file from your account, not a Y-DNA or mtDNA-only file.

Keep the original file exactly as downloaded (do not re-save it in Excel), name it after the person, and keep one file per person.

Testing the wider family, in India and at home

Gift a kit to family in India

Many Indian Singaporean and Malaysian Indian families still have parents, uncles or cousins in India. Testing an older relative there can sharpen the picture, because a grandparent carries ancestry that has been halved again in each later generation. You can buy a kit for them at helixline.in/buy by choosing "Someone in India" at checkout, or see our gifting page.

• Origins, ₹6,999: ancestry with a state-level breakdown, community similarity, ANI/ASI, steppe and AASI composition, and Y-DNA and mtDNA haplogroups.
• Decode, ₹12,999: everything in Origins plus health, traits and pharmacogenomics reports and a Health Coach consultation.
• Infinite, ₹17,999: everything in Decode plus a 137-marker Full Body Blood Test and a doctor consultation.

It is a saliva test with free doorstep pickup. The kit arrives in 3-4 days and results are delivered digitally within 2-3 weeks of the sample reaching the lab. Kits ship within India as standard; if you want one delivered to Singapore or Malaysia, that is arranged on request with a quote through our international page.

Reading your results together

Treat a DNA result as one source among several. For Malaysian Indian families, estate records, temple registers, ship and immigration records and the memories of older relatives often hold the name of a district or village that DNA alone never could. For Indian Singaporeans, the same applies to old identity documents and community association records.

Expect some variety. Siblings can show slightly different community similarities, and a family five generations in Malaysia may have Tamil, Telugu and Malayalee branches at once. A surprising result may point to a forgotten branch, or sit within the normal uncertainty of these estimates. Our community guides to Tamil, Telugu, Kerala Nair and Punjabi ancestry give more background, and our NRI and diaspora guide covers other overseas Indian communities.

Sources and further reading

• Reich D. et al. (2009). Reconstructing Indian population history. Nature. pmc.ncbi.nlm.nih.gov/articles/PMC2842210
• Moorjani P. et al. (2013). Genetic evidence for recent population mixture in India. American Journal of Human Genetics. pmc.ncbi.nlm.nih.gov/articles/PMC3769933
• Wong L.P. et al. (2014). Insights into the genetic structure and diversity of 38 South Asian Indians from deep whole-genome sequencing. PLoS Genetics. pmc.ncbi.nlm.nih.gov/articles/PMC4022468
• Singapore Department of Statistics. Key indicators of the resident population, Census 2020 and General Household Survey 2025. singstat.gov.sg
• Ministry of Trade and Industry, Singapore. Written reply to parliamentary questions on the Census of Population 2020 report (July 2021). meti.gov.sg
• Department of Statistics Malaysia. Key Findings, Population and Housing Census of Malaysia 2020. dosm.gov.my
• BiblioAsia (National Library Board, Singapore), Indian migration into Malaya and Singapore during the British period (2007). biblioasia.nlb.gov.sg
• Free Malaysia Today, The fascinating history of the Chittys of Melaka (2018). freemalaysiatoday.com
• Chola invasion of Srivijaya (overview and inscription references). en.wikipedia.org
• 23andMe, Central and South Asia populations update (July 2024) and South Asian genetic groups (January 2025). 23andme.org, 23andme.org
• AncestryDNA, Ancestral Regions 2026 white paper (October 8, 2026). ancestrycdn.com

Frequently Asked Questions

Do Indian Singaporeans and Malaysian Indians mostly have South Indian DNA?

For most families, yes. Colonial-era labour migration to Malaya drew overwhelmingly on the Madras Presidency, and about 90 percent of labour migrants were Tamil speakers, with Telugus and Malayalees making up much of the rest. A 2014 PLoS Genetics study that sequenced 38 Indian Singaporeans found their genomes clustered with South Indian groups rather than North Indian ones. Sikh, Punjabi, Gujarati, Sindhi and other North Indian families also settled in both countries, so a personal test is the only way to see your own mix.

Can a DNA test show if I am Chitty (Peranakan Indian)?

Not as a label. We found no published genetic study of the Chitty Melaka community, and no consumer company, Helixline included, has a Chitty reference group. Historically the Chitty descend from Tamil traders who settled in Melaka and married local Malay, Chinese, Javanese and Batak women, so a Chitty family may see South Indian ancestry alongside East or Southeast Asian-related ancestry. That pattern is consistent with Chitty history, but it is not proof of it; family records and community memory matter more.

Why does 23andMe say Broadly South Asian for Malaysian Indians?

23andMe reports only a handful of South Asian populations in its Ancestry Composition, and when its model cannot place a stretch of DNA confidently it falls back to a broad label. Its 2024 update grouped Kannadiga, Tamil, Telugu and Sri Lankan ancestry into a single population, so a Tamil Malaysian and a Telugu Malaysian can look very similar. Uploading the same raw file to a service with a denser South Asian reference panel gives a finer comparison.

Can DNA tell my caste or which community my family came from?

DNA cannot identify or prove a caste. A raw data analysis can show how similar your DNA is to different community reference groups, which is a statement about similarity, not membership. Communities overlap genetically, vary internally and have changed over generations, especially in a diaspora where families married across old boundaries. Use results alongside family records, temple and estate registers and the memories of older relatives.

Can I pay for a Helixline upload from Malaysia?

Yes. From Malaysia you can choose Singapore dollars (S$34 for Upload Ancestry or S$68 for Upload Complete) or US dollars ($25 or $50) at checkout; Helixline does not charge in ringgit. PayPal is also offered and charges in US dollars. Results are typically ready within 1-2 days of your file being uploaded.

Can I order a Helixline kit to Singapore or Malaysia?

Helixline kits ship within India as standard. Delivery to other countries is arranged on request, with a quote, through the international page. From Singapore or Malaysia the quickest options are to upload the raw file from a test you have already taken, from S$34, or to gift a kit to parents or relatives in India by choosing Someone in India at checkout.

Curious what your own file shows beyond "Broadly South Asian"? Upload your raw data to Helixline from S$34. For family still in India, gift a kit instead.