Kalp nakli, or heart transplantation, is a surgical procedure that involves replacing a diseased or damaged heart with a healthy heart from a donor. This operation is typically performed on patients with severe heart conditions, such as heart failure, where other treatments have failed. The donor heart is usually obtained from a deceased individual who has consented to organ donation. The success of kalp nakli depends on various factors, including the compatibility of the donor and recipient, the recipient's overall health, and post-operative care. After the surgery, patients must take immunosuppressive medications to prevent their bodies from rejecting the new heart. Regular follow-ups and lifestyle changes are also essential for long-term success.