A method and system for adding a caller (102) in a blocked list is provided. The blocked list is stored at a communication server (104). The method includes receiving (604) a call from the caller (102) at a communication device (108). Further, the method includes receiving (606) a set of inputs at the communication device (108) in response to the call. The set of inputs includes a set of instructions to add the caller (102) in the blocked list. Furthermore, the method includes transmitting (608) a call termination request to the communication server (104). The call termination request includes the set of instructions to add the caller (102) in the blocked list. Transmission of the call termination request initiates addition of the caller (102) in the blocked list at the communication server (104).