The present invention provides a controlled release pharmaceutical composition comprising selective serotonin reuptake inhibitor and a process for preparation thereof. The controlled release pharmaceutical composition comprises: a deposit-core comprising a selective serotonin reuptake inhibitor, one or more controlled release agent(s) and one or more pharmaceutically acceptable excipient(s), a support-platform applied to the deposit-core, a controlled release coating and, an immediate release coating comprising a selective serotonin reuptake inhibitor and one or more pharmaceutically acceptable excipient(s).