Antibody for targeted induction of Apoptosis, CDC and ADCC mediated killing of Cancer cells, TBL-CLN1, is disclosed. The antibodies, TBL-CLN1, are monoclonal antibodies which can specifically target and bind to the epitope of SEQ ID NO:1 expressed on cancer cells which further leads to killing of cancer cells. TBL-CLN1 is not conjugated to toxin or cytotoxic molecules, and provides selective killing of cancer cells just by binding to cancer cell surface. Also, disclosed herein is SEQ ID NO: 2 which is an engineered epitope which comprises of polypeptide sequence of SEQ ID NO: 1 and a cysteine residue which is added at the carboxyl end of the SEQ ID NO: 1. The epitope of SEQ ID NO: 2 is used to generate monoclonal antibodies described herein.
