Rochester-based health system will provide guidance on the development of “affordable” hospital sites in two of India’s largest cities.

Billionaire Gautam Adani announced Monday that he is partnering with Mayo Clinic and investing $686 million toward building two nonprofit 1,000-bed hospitals and medical schools in India.

Each of these integrated campuses will comprise 1,000-bed multi-super-specialty hospitals, medical colleges with an annual intake of 150 undergraduates, 80+ residents and 40+ fellows, step-down and transitional care facilities,