The point marked X on the map represents the capital of the Early Cholas. The Early Chola kingdom was a historic dynasty in South India that ruled from the 3rd century BCE to the 3rd century CE. The capital of the Early Cholas was located at a strategic location that allowed them to control trade and maritime activities in the region. While the specific name of the capital is not provided, it is indicated that it was a port city.

Option 1 suggests that the point marked X represents a port city of the Imperial Cholas. The Imperial Cholas were a later dynasty that ruled from the 10th to the 13th century CE. It is incorrect as the given map is representing the Early Cholas, who existed much earlier.

Option 2 suggests that the point marked X represents the shore temples of the Pallavas. The Pallavas were another dynasty that ruled the region during the same time as the Early Cholas, but their capital city was Kanchipuram, not the point marked X.

Option 3 proposes that the point marked X represents the port city of the Pandyas. The Pandyas were also a dynasty that ruled during the same period as the Early Cholas. However, their capital city was Madurai