Sender anonymity and privacy have become basic requirements for anonymous communication in electronic commerce (e-commerce). In this paper we proposed blind Signcryption scheme based on hyper elliptic curve cryptosystem. It satisfied the security requirements of anonymous confidential communication like transaction confidentiality, integrity, un-forgeability, sender anonymity, bank non-repudiation, Un-traceability and forward secrecy. Our scheme has low computation and communication cost as compared to existing schemes. It is more suitable for anonymous e-commerce such as electronic payment system.