It is the 5th century CE. I am travelling around the world. I reach the Indian subcontinent during the rule of Chandragupta II. I visit many towns including Mathura, Kanauj, and Kapilavastu. As I wander from place to place, I write down every detail in a travelogue. It is in this little book that I talk about the prosperity of Pataliputra. I notice that the Chandalas were mistreated, and write of their plight.
Who am I?