Correct Answer: 1849

Solution : The correct answer is 1849

The second Anglo-Sikh war, waged from 1848 to 1849, saw significant battles at Ramnagar and Chillianwala, culminating in British control over Punjab. Under Lord Dalhousie, Punjab was annexed in March 1849 through the Treaty of Lahore. The young Maharaja, Duleep Singh, was sent to England on a pension. Dalhousie, credited for the annexation, was elevated to the title of Marquis. The renowned Koh-i-Noor diamond also became a part of British possessions.