Provinces. In total Punjab had an area of approximately 357 000 km square about the same size as modern day Germany, being one of the largest provinces of the British Raj. It encompassed the present day Indian states of Punjab, Haryana, Chandigarh, Delhi, and some parts of Himachal Pradesh which were merged with Punjab by the British for administrative purposes (but excluding the former princely states which were later combined into the Patiala and East Punjab States Union) and the Pakistani regions of the Punjab, Islamabad Capital Territory and Khyber Pakhtunkhwa. In 1901 the frontier districts beyond the Indus were separated from Punjab and made into a new province: the North-West Frontier Province. Subsequently, Punjab was divided into four natural geographical divisions by colonial officials on the decadal census data: Indo-Gangetic Plain West geographical division (including Hisar district, Loharu State, Rohtak district, Dujana State, Gurgaon district, Pataudi State, Delhi, Karnal district, Jalandhar district, Kapurthala State, Ludhiana district, Malerkotla State, Firozpur district, Faridkot State, Patiala State, Jind State, Nabha State, Lahore District, Amritsar district, Gujranwala District, and Sheikhupura District); Himalayan geographical division (including Sirmoor State, Simla District, Simla Hill States, Bilaspur State, Kangra district, Mandi State, Suket State, and Chamba State); Sub-Himalayan geographical division (including Ambala district, Kalsia State, Hoshiarpur district, Gurdaspur district, Sialkot District, Gujrat District, Jhelum District, Rawalpindi District, and Attock District; North-West Dry Area geographical division (including Montgomery District, Shahpur District, Mianwali District, Lyallpur District, Jhang District, Multan District, Bahawalpur State, Muzaffargarh District, Dera Ghazi Khan District, and the Biloch Trans–Frontier Tract). History Company rule On 21February 1849, the East India Company decisively defeated the Sikh Empire at the Battle of Gujrat bringing to an end the Second Anglo-Sikh War. Following the victory, the East India Company annexed the Punjab on 2April 1849 and incorporated it within British India. The province whilst nominally under the control of the Bengal Presidency was administratively independent. Lord Dalhousie constituted the Board of Administration by inducting into it the most experienced and seasoned British officers. The Board was led by Sir Henry Lawrence, who had previously worked as British Resident at the Lahore Durbar and also consisted of his younger brother John Lawrence and Charles Grenville Mansel. Below the Board, a group of acclaimed officers collectively known as Henry Lawrence's "Young Men" assisted in the administration of the newly acquired province. The Board was abolished by Lord Dalhousie in 1853; Sir Henry