Annaji Datto was a Minister of Chatrapati Shivaji Maharaj, who carried out a survey known as Annaji Datto’s Dhara.According to Subhasad Bhakhar, the Maratha Empire of Chatrapati Shivaji Maharaj was divided into three parts, each under a cabinet minister, called a Sarkarkun.Annaji Datto Sachiv, Moropant Trimbak Pingle, and Dattoji Pant were appointed sarkarkun.As sarkarkun, Annaji Datto controlled the Konkan territory, including Choul. Dabhol, Rajapur, Kudal, Bande, Phonda, and Koppal. This division between territories was called Talghat or Southern division.In 1667, Shivaji appointed Annaji to the task of land revenue reform in areas under the Swarajya.Annaji’s efforts led to a new system of lower government claim on farm produce of 2/5.His work involved accurate land measurement, bringing new land under cultivation,measures to reduce exploitation of the illiterate cultivators by the hereditary officials such as the Patil and Kulkarni. His hatred towards Sambhaji Maharaj was so deep and high that, he conspired with other ministers of Swarajya and hatched plan to imprison Sambhaji Maharaj after the unfortunate controversial death of Chhtrapati Shivaji Maharaj. he again conspired with other ministers and Soirabai to overthrow Sambhaji Maharaj and make Rajaram as new Chhatrapati when Chhatrapati Sambhaji Maharaj was campaigning for battle against enemy. This was final nail in the coffins, and end of Sambhaji Maharaj’s tolerance, all the conspirators were sentenced to death by putting them under the elephants feet.