The Ayushman Bharat Health Account (ABHA) Number is a fundamental component of the Ayushman Bharat Digital Mission (ABDM). It is a unique 14-digit identification number issued to every individual in India. The primary purpose of the ABHA Number is to create a standardized and secure way to link an individual's various digital health records from different healthcare providers and facilities. This ensures that all health information, such as diagnostic reports, prescriptions, and treatment histories, is accurately associated with the correct person. Crucially, the design of the ABHA system prioritizes individual privacy and control. Access to the health data linked to an ABHA Number is strictly governed by the individual's informed consent. Healthcare providers must obtain explicit permission from the individual before accessing their records, thereby empowering citizens to manage and control their personal health information.