Talk:Salankayana dynasty

Is Sailendra Nath Sen a "WP:RS"?
The major source for this article, Sailendra Nath Sen, mentions that Ptolemy had known about Salankayanas and that Benagouron refers to Vengipura. This seems erroneous to me. He was not contemporaneous with the Salankayanas and precedes them by centuries. Also, isn't Vengi founded later? Or was he referring to the Salankayana ancestors which seems improbable to me? Reo kwon (talk) 15:28, 21 September 2020 (UTC)