You might be referring to the first Tirthankar of Jainism, Adinath (also called Rishabhanatha). He is the first taught and revered Tirthankar in Jain cosmology. In Jain texts, “Gandharva” are celestial beings, and Adinath is not described as a Gandharva; he is the first spiritual teacher who attained kevala jnana and shown the path for all beings.

If you meant something else by “first gandarv radinath bhagwan,” please clarify which text or tradition you’re referencing, and I can explain precisely according to Jain sources.

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