In the end of the discussion you mentioned about the second verse of Ratana sutta and stated "Bali" means "Poojas". Does Buddhism recommend that kind of Poojas on behalf of Davas other than offering merits?

Yes, in the pattakamma sutta https://suttacentral.net/an4.61/en/sujato, the Buddha says every human should offer five balis. Actually, devas are part of that list too.

“Furthermore, with his legitimate wealth, he makes five spirit-offerings: to relatives, guests, ancestors, king, and deities. This is his third substantial and substantive investment, used in the appropriate sphere”