by Mughals. Gobind Singh killed the attacker with his sword. Though a European surgeon stitched the Guru's wound, the wound re-opened as the Guru tugged at a hard strong bow after a few days, causing profuse bleeding that led to Gobind Singh's death. After the Guru's death, Baba Banda Singh Bahadur became the commander-in-chief of the Khalsa. He organised the civilian rebellion and abolished or halted the Zamindari system in time he was active and gave the farmers proprietorship of their own land. Banda Singh was executed by the emperor Farrukh Siyar after refusing the offer of a pardon if he converted to Islam. The confederacy of Sikh warrior bands known as misls emerged, but these fought between themselves. Ranjit Singh achieved a series of military victories and created a Sikh Empire in 1799. The Sikh empire, with its capital in Lahore, spread over almost comprising what is now northwestern Indian subcontinent. The Sikh Empire entered into a treaty with the colonial British powers, with each side recognizing Sutlej River as the line of control and agreeing not to invade the other side. Ranjit Singh's most lasting legacy was the restoration and expansion of the Harmandir Sahib, most revered Gurudwara of the Sikhs, with marble and gold, from which the popular name of the "Golden Temple" is derived. After the death of Ranjit Singh in 1839, the Sikh Empire fell into disorder. Ranjit Singh had failed to establish a lasting structure for Sikh government or stable succession, and the Sikh Empire rapidly declined after his death. Factions divided the Sikhs, and led to Anglo-Sikh wars. The British easily defeated the confused and demoralised Khalsa forces, then disbanded them into destitution. The youngest son of Ranjit Singh, named Duleep Singh, ultimately succeeded, but he was arrested and exiled after the defeat of Sikh Khalsa. Singh Sabha movement The Singh Sabha movement, a movement to revitalize Sikhism, also saw the resurgence of the Khalsa after their defeat in wars with the British - latterly in the Second Anglo-Sikh War - and the subsequent decline and corruption of Sikh institutions during colonial rule, and the proselytization of other faith groups in the Punjab. It was started in the 1870s, and after a period of interfactional rivalry, united under the Tat Khalsa to reinvigorate Sikh practice and institutions. The last Maharaja of the Sikh Empire, Duleep Singh, converted to Christianity in 1853, a controversial