Survey of Bangladesh is the national surveying and mapping agency for Bangladesh. The department started its functioning as "Bengal Survey" on 1st January 1767 under the command of major James Rennell 1st surveyor general in undivided India and conducted survey and mapping activities until 1947. After the partition of the sub continent on 14th August 1947, the organization started its new role as Survey of Pakistan and established a regional office at Dhaka. This regional office was transformed into Survey of Bangladesh when the country immerged as an independent state in the year 1971.With the passage of time Survey of Bangladesh (SOB) has attained remarkable progress in surveying and mapping system. At present SOB has established a digital mapping center, modern printing and well equipped geodetic unit. Survey of Bangladesh is now a pivotal information provider for application ranging from disaster preparedness, natural resources managements, infrastructure development to urban and rural development, planning to industrial and business geographies.