These volumes open before readers flood gates of information about princely state of Tripura and its people, on general and political situation, Nature of land administration, Police, Justice, Prison, Municipality, Weather and crops, Agriculture, Conditions of people, Immigration and emigration, Forest wealth, Trade and manufacture, Educational scenario, Public works, Revenues and finance, Post office, Chakla Roshan, Zamindarees, Estates in Sylhet etc. The information supplied in the four volumes is sufficient to frame history of erstwhile state of Tipura and its medical history, meteorological history, judicial history, etc. The book will be a valuable work of reform for all workers/information centres, researchers, historians and students.