In Hinduism the Asuras are said to be beings of moral and social things. Like truth and marriage. The Daevas are said to be beings of natural things. Like the sun and the rain. In Hinduism, the Asuras are said to be "older". And the daevas are said to be "younger". There are very many Asuras and Daevas. Two hundred years ago someone counted them and said there were over 2,000 Daevas and Asuras. So naturally not all Asuras are very important. But some names have been forgotten since then, and others have been added. This is why Hinduism is called a "living religion." It is changing all the time. 