Answer

Based on the standard Jain classification I checked, I do not find Ashwinikumar dev listed as a separate Jain deva group. The Jain source names Bhavanapati devas and Vyantara devas, with Bhavanapati groups such as Asurakumaras and Nagakumaras, but not Ashwinikumar. ( jainology.org)

Explanation

A Jain text does use “Ashvinikumar devas” as a comparison, saying two characters wandered over the earth “like Ashvinikumar devas.” In that passage, it is a simile, not a clear Jain incident of Ashwinikumar dev actually coming to dharati. ( jainqq.org)

Takeaway

So, in Jain tradition, there is no commonly accepted incident of Ashwinikumar dev coming to earth. The name appears more as a literary comparison than as a Jain scriptural episode. ( jainology.org)