This paper discusses the spacial patterns of the urban tissues of the old city of Ahmedabad, Gujarat, India, especially urban quaters which are known as pols and mohallas which consist of khancha (khanchos), khadkis and galis. The Jain, the Hindu and the Muslim have been living together within the old city from the beginning of establishment the city. We can still see the mixed habitation and segregation of the religious groups streets and naighourhood. The objective of this paper is to clarify the difference in the form of streets system and block patterns focusing on the names of streets, the places of gates, and the distribution of religious and community facilities. We selected three quaters, Manek Chouk (Jain district), Khadia (Hiadu district), Khamasa (Musulim district) for the study. The difference is very clear in terms of streets system. The block system is very hierarchical and closed in the Jain area where the pols consist of khancha which have khadokis or galis as subunits. On the contrary, pols are consisted of khancha, khadokis and galis in Hindu area and in general, there are no subdivisions in the mohallas of Muslim area.