Charlie
Charlie I've heard that the passport office requires a letter of surgery in order to get a new passport
A medical intervention certificate and updated aadhar is sufficent.
Charlie If you've had your surgery abroad how does this work? Can you have an Indian surgeon verify your surgery documents and give you a letter instead?
Yes, you can have an Indian Government Doctor verify your surgery
Charlie Is there a format to do so?
No, there is no particular format as such