In recent years everything is digitalized in the world. E-procurement is one of the services used by the government in business sectors. Security is the main aspect of this e-procurement method. In existing systems, various cryptographic mechanisms are used. Recently block chain made a tremendous change in business and economic activities. blockchain is a distributed ledger that stores the transactions in a secure and immutable way. In this paper Blockchain mechanism is introduced in the proposed system for a secure E-Procurement system. Hyper ledger composer supporting e-procurement framework is designed. Few consensus algorithms in blockchainare discussed to support the blockchain method.