BeWare! Sikh history is being intentionally distorted by some mischievous organizations. Educate your children instead of fully relying on school books. We also object and raise our complaint to the concerned authorities to look into this matter.
Before also, similar attempts have been made but the Sikh Org like SGPC & DSGPS have failed to counter this which is the reasons that still such attempts are continuing.
https://sikhsiyasat.net/distortion-of-history-in-class-xii-pseb-book-oversight-panel-members-get-material-to-analyse/