Lal Singh was the commander of the Sikh army during the first Anglo Sikh war. The treachery of Lal Singh and Teja Singh helped the British to acquire Lahore without a single battle.
An Italian Physician, Gemelli Careri visited India in 1695 AD during the reign of Mughal emperor Aurangzeb and accounted the military organization and administration of Mughal empire at that time.