What is hasnat khan doing now?

As of my last knowledge update in October 2023, Hasnat Khan, a prominent British-Pakistani heart surgeon known for his relationship with Princess Diana, has maintained a relatively private life away from the public eye. He has continued his medical career, focusing on cardiothoracic surgery. However, specific details about his current activities or projects may not be readily available. For the latest updates, checking news sources or social media would be advisable.