After the death of Ranjit Singh, the Sikh Empire witnessed the murders of Ranjit Singh's sons, one after another, organised by the Dogras. Then the Dogras urged the army to make the Lahore Durbar declare war on the East India Company. They did so, and the Dogra-led Sikh Army was betrayed by its commanders who revealed battle plans to the British, which allowed them to win several crucial battles. This led to the defeat of the Khalsa and the British signed the Treaty of Lahore, ending the war in a Sikh defeat. The treaty stipulated that the Sikh Empire was to pay a significant amount of reparations to the East India Company, and Jind Kaur, the Sikh regent, was imprisoned and later exiled. The Sikh Army was reduced to 20,000 infantry and 10,000 cavalry. The disbanded soldiers were also furious with the terms of the treaty. This led to the Second Anglo-Sikh War, in which the Sikhs won many battles, but finally lost the Battle of Gujrat. On 10 March 1848 Sikh leaders Chattar Singh Attariwalla and Sher Singh Attariwalla eventually surrendered near Rawalpindi. On 14 March 1849, the Sikh Army surrendered to the East India Company. Many soldiers, while laying their weapons down, started crying and saying "Aj Ranjit singh mar Gaya ". However, many Sikh Army soldiers entered into service the British Indian Army, where they served with distinction in numerous battles and wars under the British Crown.