Explanation:

Explanation:

Ancient Ports:

1. Kadura

• Kadura was an important port located on the west coast of India, near present-day Mumbai. It was a major center of trade and commerce during the Gupta period, and was known for its export of textiles, pearls, and precious stones.
• The port was also an important center of shipbuilding, and played a significant role in the development of maritime trade in India.

2. Ghantasala

• Ghantasala was a major port located on the east coast of India, near the Krishna delta. It was an important center of trade and commerce during the Gupta period, and was known for its export of textiles, spices, and ivory.
• The port also served as a gateway to the south-east Asian countries, and played a vital role in the spread of Indian culture and religion to these regions.
   

3. Poompuhar

• Poompuhar, also known as Puhar, is believed to be the Port town of Chola Empire.
• Located in Nagapattinam district, Tamil Nadu on mouth of Kaveri River. Also known as Kaveripattinam.
• Details about it have been found in several historic documents including Periplus of the Erythraean Sea.
• According to historians, the port witnessed the Indian merchants trading their commodities, mostly spices, with other Asian countries as well as Arabs.

4. Aricamedu

• Arikamedu is in today’s Puducherry, a union territory of India, was an important ancient port city.
• It finds mention in the Periplus of the Erythraean Sea and Tamil poems of the Sangam period.
• It is believed to be an active trading port of the region with Roman Empire as early as second century BC.
• Excavations have revealed Roman Arretine ware, pottery, beads, intaglios, lamps, glass and coins here.

5. Barygaza

• Bharuch, located in Gujarat, was a prominent port in the Indian subcontinent region during ancient India.
• Also known as Barygaza/Bhrigukachcha and Broach.
• Bharuch had established trade relations with Arabs, Greeks and Romans, Africans, Chinese and Egyptians.
• Bharuch was ruled by numerous powerful empires, such as the Gupta dynasty, Rajputs and Mughals.