The idol in the image is indeed a brass statue of the three Hindu gods, Dhankunji, Dhankuber, and Laxmi. However, there seems to be a misunderstanding. There are two main deities depicted in the statue: Kubera: The god of wealth and prosperity. He is often depicted as a plump, jovial man, seated on a throne and holding a sack of gold coins. In the image, he is the larger figure seated on a throne. Lakshmi: The goddess of wealth, prosperity, fortune, and auspiciousness. She is typically depicted as a beautiful woman standing or sitting on a lotus flower, with four arms. In the image, she is the smaller figure standing next to Kubera. Riddhi: Kubera's consort, also associated with prosperity. She is sometimes included in statues of Kubera, but not always. She is not depicted in the statue you sent.