Explanation:

The Sikh Rule in Lahore initiated from the invasion and rule of the Sikh Misls and extended till the Sikh Empire of Ranjit Singh which ended in 1849.
During the 1740s, frequent invasions by Afghans led by Ahmad Shah Abdali and chaos in local government had made life very uncomfortable for the citizens of Lahore. Bhangi Misl was the first Sikh band to plunder the Mughal Lahore. Later Ranjit Singh was able to make gains in this chaos. He defeated Zaman Shah, the son of Abdali, in a battle between Lahore and Amritsar. Out of the chaos of Afghani and Sikh conflicts emerged a victorious Sikh by the name of Ranjit Singh who was able to unify the Sikh factions and capture Lahore where he was crowned Emperor.