The forest, a major habitat for elephants, is spread over 22,403 hectares of land out of which 500 hectares are under encroachment at present, an official said. In the first phase, the drive was conducted in Kamarpani and Betnala areas of the forest, Choudhury said. The District Administration has engaged elephants of the forest department and requisitioned excavators to clear the land. The illegal settlers belong to a mixed Population of the minority and tribal communities. Chief Minister Himanta Biswa Sarma told reporters in Guwahati that most of the illegal settlers have land in different places and they mostly encroach for Agriculture-notes-for-state-psc-exams”>Agriculture or business purposes.