The Sikh rule in the history of the subcontinent is a footnote in history
If you think Sikhs can ever match the barbarity of pushtun then you are wrong, Abdali led eight campaigns across the Indus. He ravaged Punjab as far as Dehli, annexed Lahore and Multan and extended his empire to all of western Punjab and Kashmir. Abdali carried out sikh holocaust on its every trip to punjab
You wish that sikh could capture Kabul, they were unable to subjugate pushtun tribes, Sikhs unleashed a reign of terror and built the Jamrud Fort, which rises above the sur¬rounding flat like a "battleship", to control the mouth of the Khyber Pass. Peshawar contains no architectural monuments of any value is due mainly to the sikh devastations of 1823.
Sikhs originated as a group of bandits that would steal rich Muslim caravans; the Sikhs then raided and pillaged the land and forced their ideology on low-class Hindus.
The Mughals fought against the tyranny in an act of retaliation! They tried to stop these criminals from stealing and looting!
Sikhs only occupied 3 pushtun cities Peshawar, Bannu and the Derajaat. They made no attempt to occupy the hill territories and never entered Swat, Buner, Bajaur, the Kurram Valley or Waziristan. Sikhs could not go beyond Peshawar an Inch
Ranjeet Singh was a mass-murderer and tyrant! The Sikh kingdom was the darkest period in the history of Punjab!
The Sikhs were opportunists and started their short-lived kingdom for a few decades, soon to be destroyed by the British a short time after!