Option under section 115BAC must be exercised electronically in Form 10-IE with digital signature or EVC. A person who is an individual or a Hindu undivided family electing the regime under section 115BAC for any relevant previous year must exercise the option by filing Form No. 10-IE, furnished electronically and authenticated by digital signature or electronic verification code; the Principal Director General or Director General of Income-tax (Systems) will specify filing procedure, data structure and EVC generation, and implement security, archival and retrieval policies for the Form.