Who are Saiva Vellalar's? or Saiva Pillai's or Karkarthar's [Karkathar's] or simple Vellalar Pillai's?

Sozhiya Vellalar or Solia Pillai or Soliars

These Sozhiyars are of Tanjore origin -mostly business people.
"Soziyan Kudumi Summa Aadathu" -means they are very illustrious people.

Veera Kudi Vellalar

Fighting vellalars, I read one Phd article about them.

Nankudi Vellalar or Mudivaithanenthal Pillaimar or SivakaLai pillaimar or Sevalai Pillai

Sivakalai Pillaimar is born from Kottai Pillaimar Parapmpara - caste that lived in around Kottai's -Forts especially to help the Raja's. So this Kottai Pillaimar is now allmost extinct. It is said that when a big Flood affected the Sivagalai Thaluk, the Kottai Pillaimar women did not cross the flood by raising their saree - pavaadai. The ladied who raised their pavaadai and ran for life to the other side of the Flood are now Sivagalai Pillaimar, now totally transferred and happily living along the Tuticorin District - Mudivaithanendhal. They are colloquially called as "Sevalai Pillai" = Sivakalai Thaluk marvi Sevalai Aayitru.

Now as they predominantly live in Mudivai Than Enthal - a small village in between the Tuticorn - Tirunelveli Highways. They are mostly seeking the Tamilnadu Police or Indain Army Defense services. They prefer uniformed services. They are still following matrilineal system.
After marriage husband stays at wife's house, and mostly obeys wife's and mamiyar's orders.

They call this as "Meenakshi Rule" - "Madurai Rule" If Husband rules the house it is called as "Chidambaram Rule" - means Chidambaram Sivan rules the house.

Kottai Pillaimar

Kottai Pillai - an extinct caste in Tamilnadu, India. There are some thesis - researches carried out by some renowned writer about this pillaimar community. They built the King's Kottai or Fort, and lived along the kottai's Forts to help and maintain the kottai. It is said they are extinct after a flood.

Buy the WORLD RENOWNED RESEARCH BOOK on Kottai Pillaimar read it at world library

VeLalar [Pottery maker or Kuyavargal] versus Vellalar

It is also said that VeLalar means Man pandam seyyum kuyavar community. They make earthen pots. Vellalar means the men who rules the water bodies, and cultivate. some more inputs required on these VeLala Kuyavargal, please.

Thuzhu or Tulu or Thuzhuva or Tuluva Vellalar

These are of Thuzhu origin (South Kannada people) settled in Tamil Nadu.

Kongu Naatu Vellalar

These are Kongu nadu origin -in and around Coimbatore. Farming and business.

Vania Chetty

As the name suggests they are business people-mostly oil business.

Vellan or Vellanj Chetty

a small sub branch of vellalars. OBC

Illathu Pillai

found in tirunelveli district,ILLATHU PILLAI -THEY WERE MADE TO MAKE IL's -THE HOUSES -THEY ARE ALSO CALLED KOTHA PILLAIMAR -OR KOTHANARS -THE BUILDERS.

Isai Vellalar

THE IYAL-IASI-NADAGAM PART OF PEOPLE. THEIR MAIN MOTTO IS TO LEARN AND propagate ART. They followed the pottu kattum culture, the DEVADASI culture. more... பந்தநல்லூர் மீனாக்ஷி சுந்தரம் பிள்ளை

Devendra Kula Vellalar

They are Pallars, Mallars. They call themselves as Pillai now.
Inputs required here.

Thondai mandala Vellalar

Mostly they are Mudaliyars -not much known -inputs reqd here please.

Aarunaattu Vellalar

ஆறு நாட்டு வேளாளர் சாதி மூதாதையர்களால்
கீ.பி.1176ம் ஆண்டு சிதம்பரம் நடராஜர் ஆலயத்தில் தோற்றுவிக்கப்பட்டது
See Aaru naattu vellala site

Thuluva Pillai or Tulu Pillai or Thulu Pillai or Thuluva Vellalars

Thulu as the name suggests, are old Dravidian sub division. They still inhabit Thulu nadu - the Konkan - the south kannada.
They are beautiful, koorg people. Aishwarya Rai is also a famous Thuluva Pillai. [Bunts]. Tulu vellalars are very courageous, like the Field Marshal General Kariappa and Air Marshal Kariappa [his son]. Tulu nadu or Kodagu nadu or Koorg country is a Gods own country with lot of nature spots. Some of the Tulu people settled in Tamilnadu as early as the Chola - Chalukya periods.
They are mostly Saivaites or Vaishnavaites.

See Thuluva Vellala Pillai site

8 Veetu Pillai or Ettu veetil Pillai

Kerala Pillai -mostly feudal rulers of Thiruvidhankur samasthanam
read more here http://forumhub.lunarpages.com/
also here http://www.keralahistory.ac.in
survivors of the marthandam kings http://harringtonstore.com/
kerala pillai history http://naturemagics.com/

Nair

The Nairs of Kerala are highly developed, Forward Caste people in Kerala
They intermarry with Pillai, Menon of Kerala people. In Tamilnadu the Nairs are not that populous.
Famous Nairs are: MG Ramachandran, MT Vasudevan Nair read article by Rajiv Nair

Menon

They are like Kerala Nairs, more inputs needed. read article by Rajiv Nair
Most famous Menons are...
Nehru Era Krishna Menon

Kerala Pillai

Kerala equivalent of Tamilnattu Vellala Pillai
some saiva pillai do exist along the borders esp. southern Kerala,
mostly Thiruvananthapuram e.g Poet Meenakshisundaram Pillai
Thagazhi Sivasankara Pillai