Guru Gobind Singh, the tenth and fil human Guru of the Sikhs (1675–1708), fundamentally transformed the social organization and spiritual path of the Sikh community. His primary contributions include:
• Foundation of the Khalsa Panth (1699): Facing intense persecution from the Mughal Empire, Guru Gobind Singh institutiolized the Khalsa (the military-spiritual order of the pure) during the Baisakhi festival at Andpur Sahib. He introduced a formal baptism ritual (*Khande di Pahul*) that unified his followers into a disciplined community dedicated to defending justice and resisting tyranny.
• The Mandate of the Five K's and Equality: To foster unity and elimite caste divisions within the faith, he required all baptized Khalsa Sikhs to wear five distinct faith symbols: Kesh (uncut hair), Kangha (wooden comb), Kara (iron bracelet), Kachera (undergarment), and Kirpan (dagger). He also gave all men the surme Singh (Lion) and all women the surme Kaur (Princess), replacing traditiol caste identifiers.
• Closure of the Human Guru Lineage: Guru Gobind Singh compiled the fil version of the Sikh holy text, ending the line of living human gurus. He declared that after his passing, the eterl spiritual guide for all Sikhs would be the Guru Granth Sahib, shifting religious authority entirely to the sacred scriptures and the collective community (*Guru Panth*).