In the model of the bazaar-based city in South Asia:

a. caste groups were allowed to live where they wished
b. the colonial administrative section was known as the "civil lines"
c. the center of the city reflected religious functions
d. land use patterns reflected a concentric zone model

b.the colonial administrative section was known as the "civil lines"

Explanation:

The bazaar is a Persian word for the enclosed marketplace were the goods and services are exchanged and sold and also is used to refer to the network of the merchants, craftsmen, and the bankers that work in that area. Evidence of the name first appeared on the 3000 BCE, and shopping is Bazar is a lifeline on the Arabian and middle east and thus forms a part of the South Asian cities and towns that have remained at the central place of business.

Ithink the answer you are looking for is (b).