Final answer:
The post office was created in the village to provide services for the indigo factory, allowing communication and transportation of goods and people along the trade routes.
Step-by-step explanation:
In the case of the creation of a post office in the village, the primary reason was to provide services for the indigo factory. The factory needed a means to communicate with other parts of the empire and the post office served as a hub for transmitting official mail. The post office also facilitated the movement of goods and people along the trade routes.