Q. Most of the soldiers called "Pilwan" in Mahmud's army were Hindus. The work of Pilwan was to __?
Answer: Elephant Drivers
Notes: Pilwans were the elephants troops and most of them were Hindus. Their commanders were called Muqaddam-i-Pilbanan. The reason for Hindu elephant troops was that most of the elephants in his army were actually looted from Indian Kings as ransom or booty.