Original: Based on the provisions of the treaty , Gulab Singh acquired the lands '' River Indus and the westward of the River Ravi including Chamba and excluding Lahul , being part of the territories ceded to the British Government by the Lahore State according to the provisions of Article IV of the Treaty of Lahore , dated 9th March , 1846 . ''
Simplified: The Treaty of Amritsar was signed on March 16 , 1846 to settle a dispute over territory in Kashmir after the First Sikh War with the United Kingdom .