The Riyazu-s-Salātīn, is a description of the History of Bengal by Ghulam Husain Salim. This book was translated from the original persian by Maulvi Abdus Salam, and an English translation was published by the Asiatic Society in 1902.
The Riyazu-s-Salatin translates to “Gardens of Kings”. The Riyazu-s-Salatin, was completed by Ghulam Husain Salim Zaidpuri, during 1787-8. Salim Zaidpuri, as he addresses himself in the book, wrote this book when he was the Dak Munshi or the Post Master in Malda, under Sir George Udny (a Commercial Resident of the East India Company). He was originally from Zaidpur in Oudh (Awadh). Ghulam Husain Salim died in 1817. (The dates are suspect; Sir George Udny was born in 1813, and entered the civil services around 18 years of age.)
Bengal, at the time was one of the richest and most flourishing of the provinces. It contributed maximum revenue, of all provinces to the Delhi Emperors and was a coveted post for viceroyalty for the nobles.
The early part of the book covers the region and other demographic information, characteristics of the land and the cities, and a brief history of the pre-mughal period. It then follows the history of the rulers of the region, the Nizamat period, and ends with the arrival of the Europeans, and eventual domination of the English.
The book is 478 pages, the searchable and scanned PDF is about 30 MB. It available for download from archive.org. Visit Riyazu-s-Salatin, on archive.org, and select the format of your choice.