Not Hari singh Nalwa but the biggest persecutor of muslims (pashtun, kashmiri and some punjabi) were Dogra/jamwal Rajputs in the north.Sikhs were pious religious rulers but Dogra/jamwals taught these inbreds a lesson that they still not forget.Apart from Azan ban by Akalis and turning the Badshahi mosque of lahore into horse stable just to humiliate Punjabi musalman.
Rannvir singh Dogra put 1 RS for 1 yousufzai pashtun head,Hunza tribe were mercilessly massacred and their women were sold in Hira Mandi as prostitutes they cleansed the valley from pashtun filth, cow slaughter was punishable by death, Azan was banned forced labour of kashmi muslims (including women) was widespread.
Dogras are the role model how to rule subhuman savages and force them to complete submission.pashtun only retuned in 1947 when dogras were weakest and Nehru was reluctant to annex the POK.