Who is Kubera from Lord of Light and what is their importance?

Kubera is one of the god-like people who lives in the celestial city. He has the ability to extend a feeling of drunkenness and well-being to people around him. He is highly intelligent and is the first to solve the mystery of the murders of Brahma and Vishnu. He supports Sam, but opposes his plan to selectively kill off the gods one by one.