This monument was built by Ibrahim Adil Shah in the honor of his wife Queen Taj Sultana in the year 1620. It is in a total area of 224 sq.ft with an outside area of 35 sq.ft and height of about 52 ft. At the entrance there is an arched entrance of the Gothic style that is bordered by the two octagonal towers. It is known as the water reservoir that was built to commemorate Ibrahim II’s first wife Taj Sultana, the east and the west wings of the towers are used as rest house which provided accommodation for voyagers. The steps leads to the water edges nearby the high enclosing wall in terrace with low parapet wall.