of . The citadel had two entrances one on the southern side and one on the eastern side for accessing the residential area. In the residential area a drain, a bathroom with a small platform and a soakage jar in every house prove the well known sanitary arrangement and drainage system of the Harappan Period IB (1950 BC – 1800 BC) There is no break in the continuity of settlement from phase IA to phase IB, but this period has been defined separately due to the arrival of a new wave of people who used a new form of pottery and instruments. They retained the structure of the citadel but added a mud brick reinforcement to the inside of the fortification wall. As this would have only reduced the area within the citadel, it is not clear why they did this. The end of period IB is marked by a thick layer of ash which represents a widespread conflagration. Period IC (1800 BC – 1700 BC) After the fire of period IB, a new group of people came to Surkotada though the site does not show any break in the continuity of settlement. The new people followed their predecessors in the layout of the settlement and made a citadel and a residential complex on the same lines made of rubble and dressed stones. These measured respectively Layout of the city and architectural remains The total built up area of Surkotada of the period IC is in the form of a rectangle aligned along the cardinal directions. It measures east-west and about north-south. Despite its small size, archaeologists consider Surkotada very important. It had been treated by its builders at par with Kalibangan and Lothal in terms of planning. The gates of Surkotada have also been treated with care and in some respects are different from general Harappan trends. Moreover, many scholars feel that the location of Surkotada was strategic to control the eastward migration of the Harappans from Sind. Surkotada also supports the concept of the feudal system of administration in the civilization . In other words, Surkotada could have functioned as a regional capital or garrison town. The plan of Surkotada is composed of two squares - the one to the east is called the residential complex and measures while the one on the west is the citadel and it measures . The citadel is the higher of the