Answer

No. In Jain Dharma, not all Navgraiveyaka Devas necessarily have Samyag Darshan.

Explanation

Navgraiveyaka Devas are heavenly beings residing in the higher heavenly regions called Graiveyaka heavens. They are spiritually advanced compared to many lower celestial beings, but being born in a high heaven does not automatically mean that every being there has Samyag Darshan — right faith or true spiritual perception.

In Jain philosophy:

• Samyag Darshan depends on the soul’s inner purity and destruction or subsidence of darshan-mohaniya karma.
• Heavenly birth is the result of punya karma, but punya alone does not guarantee right faith.
• Even Devas can still have delusion, attachment, pride, and spiritual negligence.

So, some Graiveyaka Devas may have Samyag Darshan, but it should not be understood that all Navgraiveyaka Devas possess it.

Spiritual Understanding

Jain Dharma teaches that spiritual status is determined by inner realization, not by external birth or heavenly position. Even a heavenly being may remain in samsar if right faith, right knowledge, and right conduct are not developed.

Takeaway

Birth as a Navgraiveyaka Deva is very elevated, but Samyag Darshan is not guaranteed merely by heavenly birth. True spiritual progress depends on the soul’s freedom from delusion.