Ṛthu(Rithu) is one of those Kṣatriya(Kshatriya) Rājarṣi (Rajarshi; a king with the attributes of sages), who , in ancient times, achieved the status of Brahmarṣi (Brahmarshi; a Brahmana sage), through tapasyā (tapasya; hard penance).
Ṛthu(Rithu) is one of those Kṣatriya(Kshatriya) Rājarṣi (Rajarshi; a king with the attributes of sages), who , in ancient times, achieved the status of Brahmarṣi (Brahmarshi; a Brahmana sage), through tapasyā (tapasya; hard penance).