 As per the Sanskrit text "Harshacharita" (biography of North Indian ruler Harshavardhan written by the court poet Banabhatta in the 7th century), during the coronation ceremony of King Harshavardhan, king Bhaskarvarman of Kamrupa gifted many precious items to the North Indian king.Out of this the most important ones include the silk items and other precious jewels.These included a white silk umbrella, sacks of woven silk and silken towels.