Medieval Punjab - Sikh Gurus and Sikh Religion

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1.
The phrase "Guru Ladho Re" is linked to which Sikh Guru?
2.
Who initiated the Sarbat Khalsa assembly in 1708?
3.
Which Mughal official was responsible for ordering the execution of Guru Gobind Singh's two younger sons during the Saka Sirhind in 1704?
4.
Who established the Akāl Sena, the first standing Sikh army, in 1606?
5.
Who was the historical owner of the 17th-century copper urn known as the Ganga Sagar?
These questions are part of the Punjab General Studies [1500+ MCQs] course available only in the GKToday Android App.