Bhopal is located in the central part of India . In February-March 1818 , Bhopal became a princely state in British India as a result of the Anglo-Bhopal treaty between the East India Company and Nawab Nazar Muhammad ( Nawab of Bhopal during 1816-1819 ) . Bhopal state included the present-day Bhopal , Raisen , and Sehore districts , and was part of the Central India Agency .