Assistance Required for Unreturned Furniture

We gave some furniture for repair at a shop in Dombivli two months ago. Since then, the owner hasn't been answering our calls. When we visited the shop, a worker informed us that the furniture was moved to Malad. We have the bill as well. Recently, the owner started answering our calls but keeps postponing the return date, saying it will be ready in a day or two. What should we do?