It is not clear who burned the Library at Taxila, as there are several different stories and accounts that have been passed down through history.

According to one account, the library at Taxila was destroyed by the armies of Alexander the Great during his campaign in India in the 4th century BCE. Another account suggests that the library was burned by the Huns during their invasions of India in the 5th century CE.

There are also some accounts that attribute the burning of the library to other historical figures or events. For example, some historians believe that the library was destroyed during the invasions of the White Huns in the 6th century CE, while others attribute the destruction to the Islamic invasions of the 8th and 9th centuries CE.

It is worth noting that the exact details of the burning of the library at Taxila are not well-documented, and the true cause of its destruction remains a mystery.