Published - December 26, 2025 02:35 am IST - New Delhi According to the report, deaths due to circulatory system diseases were highest for people aged above 70. File Diseases of the circulatory system were the leading cause of medically certified deaths across India in 2023, a report released this week by the Office of the Registrar General of India said. These diseases accounted for 36.4% of all medically certified deaths in the country, according to the “Annual Report on Medical Certification of Cause of Death, 2023” of the RGI.