:lol: All branches of Buddhism make the same claim of being the only true teaching. Personally I don't care as I don't agree with and don't follow naastika ideology of gautama. My point was only about a kalki being mentioned in kaalachakra tantra.
Kalki is mentioned in kaalachakra tantra which is a part of vajrayaana branch of Buddhism. Tibetans don't follow theravaada variety buddhism as Srilankans do. theravaada is considered inferior by them and they use word "heenayaana" for it.