"On Doctors Day, my greetings to all doctors. India's strides in the world of medicine are commendable and have contributed to making our planet healthier," Mr Modi tweeted.
He also shared an audio of his monthly radio program 'Mann Ki Baat' with the tweet.
Today, he will also address the medical fraternity. The program is being organised by the Indian Medical Association (IMA).
The National Doctor's day is observed to commemorate the birth and death anniversary of great physician Dr Bidhan Chandra Roy, who had also been the chief minister of West Bengal.
PM greets Chartered Accountants' on CA Day
Prime Minister Narendra Modi on Thursday also greeted Chartered Accountants on Chartered Accountants' Day.
In a tweet, the Prime Minister said, "Greetings to all Chartered Accountants' on CA Day. This community has a vital role in India’s progress. I call upon all CAs to keep the focus on excellence so that Indian firms emerge as one of the best globally."