The immigrant Iyers settling in Kerala were obsessively clannish..
We observed distinctions of Vadamas, Mankudy, Brihacharanam, Astasahasram Vadhyama etc., Each sect claimed number one place in respectability and marriage inter se was unthinkale at that time ..
They say Vadamas had the greatest efficiency in increasing their own populaton in Kerala.. അവരയ് ഒരു കൊടി വടമന് ഒരു കുടി
avarai oru koti vataman oru kuti...
if there is one tendril of Avarakkai plant, it will spread over the whole garden and if there is one family of Vadama it will grow into a clan very soon.