- Before the muslim invasion, the kShatriya varNa was widespread - even in south India.
- vIra ballALa the hoysala, famously told malik kafur that he is willing to give up everything except his sacred thread.
- chulavamsha clearly describes the buddhist sinhalese king parAkrama bAhu of lanka undergoing upanayanam (MT, GB).
- the kadamba-s of karNATaka were famously brAhmaNa-s converted to kShatriya-s.
- Many dynasties of India, including south Indian ones such as chAlukya, pANDya and choLa kings conducted vedic yAga-s allowed for kShatriya-s such as rAjasUya and ashvamedha.
- It is quite possible that the vijayanagara kings were not invested with the yajnopavIta - they’re not known to have performed the vedic sacrifices. (This despite their great scholarship in sanskrit, patronage of temples etc..)
- Names ending with “varma” try to claim ceremonial (not just de-facto) kShatriya status - that suffix is prescribed by the dharmashAstra-s for kShatriya-s. mArtANDa-varma, narasimhavarma pallava etc..