This project is designed to teach the students ways to deploy a business networking employing Blockchain. Here, the car auction business network will be having a set of participants( sellers and buyers), transactions(closing auctions and placing bids), and assets( cars and car listings). The aspirants will have model these employing hyperledger composers and testing the business logic which makes online auction work. The students will be developing a business network, building a hyperledger composer playground, and modeling participants, assets, and transactions.