During the excavations in 1937, 1940 and 1956 peasant estates were found in the castle of the ruler and hall with columns, decorated with wood carvings. As a population of various ages lived in this territory, clay tableware of 9-11 ages and various household items (4th century BC) were found by archaeologists.
From 12th to 13th centuries, the central part of Kavat-Kala was very populated. Sometime there were existed 90 estates. The territory of Kavat Kala is a complex of monuments, located in the town of Ellikkala Bustan. Kavat-Kala fortress (160-190 meters) is the central monument of the oasis.
Currently Kavat-Kala fortress is subject to considerable research, which requires a detail study of the history and archeology.