A 52-year-old woman from a rural village in Madhya Pradesh presents to the Primary Health Centre (PHC) with a 3-month history of progressive dyspnea and chest pain. On examination, she has a systolic murmur and signs of heart failure. Echocardiography reveals severe mitral stenosis requiring valve replacement. The family expresses concern about the cost of surgery. The PHC doctor informs them that the patient is eligible for free treatment under a centrally-sponsored scheme that covers secondary and tertiary care for below-poverty-line families. Which of the following schemes is the doctor referring to?