* The Ghadr (or Ghadar) movement was a revolutionary movement that aimed to overthrow British colonial rule in India during the early 20th century. * It was launched by Indian immigrants, mainly Sikhs and Hindus, residing in North America, particularly in the United States and Canada. * The Ghadr Party was formed in 1913 in San Francisco, California, to liberate India from British rule through an armed revolution. * Prominent leaders of the Ghadr movement included Lala Har Dayal, Sohan Singh Bhakna, Kartar Singh Sarabha, and Vishnu Ganesh Pingle.