Rishabhdev (Adinath) had many Ganadharas (chief disciples). There are differences between Jain traditions about who is considered the principal Ganadhar:

• In some traditions, Vrishabhasena (Vrishabhasen/Rishabhsen) is regarded as the chief Ganadhar of Adinath.
• In other traditions, Pundarik Swami is named as the principal Ganadhar.

So, both names appear in classical Jain accounts, but the identity of the “main Ganadhar” varies by Digambar/Shwetambar lineage and specific suttas.

You can read more about this topic here and about Pundarik Swami in related Jain Knowledge pages .