Is there any connection between devananda & mahavir in purva bhav

Yes. In Jain tradition, Devananda and Bhagwan Mahavir are connected through purva-bhav (previous-life karma).

• In the current life, Devananda was the Brahmani in whose womb Mahavir’s soul first descended, and later the embryo was transferred to Trishala’s womb. ( jainknowledge.com)
• The deeper purva-bhav connection given in Jain stories is that Devananda and Trishala were sisters-in-law in a previous birth. Because Devananda had hidden Trishala’s jeweled ornament box and caused her grief, that karma later affected the birth arrangement of Mahavir. ( jainknowledge.com)
• So, spiritually, the link is karmic, not just physical: Devananda had the motherly bond with Mahavir in that birth, but due to karmic reasons the final birth of Mahavir as a Tirthankar occurred in Trishala’s womb. ( jainknowledge.com)

If you want, I can also give this in simple Gujarati/Hindi or in story form.