Accordingly, embodiments herein provide a method for self-activation of universal integrated circuit card (UICC) in a mobile device. The method includes receiving, by a UICC-activation application installed at the mobile device an input data from a user of the mobile device, wherein the UICC-activation application is associated with an operator of the UICC. The method also includes determining, by the UICC-activation application at the mobile device, whether an electronic-Know Your Customer (e-KYC) procedure needs to be initiated for obtaining a subscription to the UICC in the mobile device based on the input data. Furthermore, the method includes initiating, by the UICC-activation application at the mobile device, the e-KYC procedure with at least one operator server based on the input data and automatically activating the subscription in the UICC of the mobile device based on the e-KYC procedure.