From the Jain viewpoint, Jain Dharma is Sanatan because it is eternal, beginningless, and based on the timeless nature of the soul, karma, ahimsa, and liberation.

However, Jainism is not formed from the beliefs of any other religion. It is an independent, ancient spiritual path revealed by the Tirthankars.

So the correct Jain understanding is:

• Jain Dharma is Sanatan
• Jain Dharma is independent
• It is not derived from Hindu beliefs

If you want, I can also explain the meaning of “Sanatan” in Jain philosophy in simple words.