The correct answer is A. February 15, 1961.
The first open heart surgery in India was performed on February 15, 1961, by Dr. P. Venugopal at the Christian Medical College in Vellore, Tamil Nadu. The patient was a 22-year-old woman with a congenital heart defect. The surgery was a success, and the patient made a full recovery.
Dr. Venugopal was a pioneer in cardiac surgery in India. He was the first Indian surgeon to perform a successful open heart surgery, and he also developed several new techniques for cardiac surgery. He was a recipient of the Padma Shri, India’s fourth-highest civilian award.
The other options are incorrect because they are not the dates of the first open heart surgery in India.