Please go through the para context in book I hope you know the difference between fact and speculation Fact is what u see or have proof and speculation is diff thing doesnt come any near to fact I have kept the fact what Mr Thurston saw by his eyes and he speculated by mixing  telugu castes at a single instance it is not accepted by telugu historians please go thru entire context in Thurstons u will know better how confusion he was while mixed  castes all the reqd justificationsarguement r in talk page i hope it clarifies you