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Stream Control Transmission Protocol (SCTP) is newly emerged protocol, which is combination of good qualities of TCP and UDP. It is a reliable message oriented protocol providing multistreaming and multihoming. In this paper, a modified algorithm is proposed for dealing multiple packet losses which improves congestion control mechanism in network. Proposed SCTP is a simple sender side alteration to the SCTP congestion window update algorithm with same traditional SCTP receiver. The results are compared with traditional SCTP and Scalable SCTP traffic using Network Simulator-2 and result is better than the other schemes.