M. N. Srinivas observed in 1957 that, ""Varna" has been the model to which observed facts have been fitted, and this is true not only of educated Indians, but also of sociologists to some extent." Instead of analysing the structure of the subgroups independently, commentators had explained them inappropriately by using an existing but alien social structure. From this unsuitable methodology had come the notion that the groups were subcastes rather than subdivisions. He also argued, in 1966, that "Some Nayars "ripened" into Samantans and Kshatriyas. The royal lineages of Calicut, Walluvanad, Palghat and Cochin, for instance, although of Nayar origin, considered themselves superior in ritual rank to their Nayar subjects." That is to say, they assumed a position above the status that they were perceived as being by others.