INDIAN HISTORY

Detailed explanation-1: -The Treaty of Lahore was signed on 9 March 1846 after the First Sikh War . As per the treaty, the Sikhs agreed to hand over Kashmir and Hazara and Jalandhar Doab to the British. It was due to this treaty that the Kohinoor diamond was handed to the British.

Detailed explanation-2: -After the first Sikh war ended, the Governor-General Lord Hardinge signed a treaty with the Lahore government on 9 March, 1846.

Detailed explanation-3: -The Treaty of Amritsar, executed by the British East India Company and Raja Gulab Singh of Jammu after the First Anglo-Sikh War, established the princely state of Jammu and Kashmir under the suzerainty of the British Indian Empire.