Explanation

Francois Bernier was a French physician and traveler.

He arrived in India during the region of Shahjahan

He stayed (14 October 1658 – 20 February 1670) for around 12 years in India

He worked as a physician to Mughal prince Dara Shikoh.

Dara Shikoh (the eldest son of the Mughal emperor Shah Jahan