Explanation:

• In India evidences of ship building, port and warehouses installations are datable to Harappan culture. The important Harappan and late Harappan ports were Lothal, Lakhabawal, Kindarkhera, Kuntasi, Megham, Prabhasa, Todio, Amra. The excavations of these sites have yielded antiquities of Bahrain island, Persian gulf, Egypt and Mesopotmia cities.
• The same maritime traditions continued even during the life time of Buddha, the Mauryas, the Gupta and in later period. During historical period India had trade and cultural contacts with Egypt, Rome, Greeks, Arabs, China and all most all Southeast Asian countries.
• Both the coasts of India have been studded with a string of ports. The ports on the west coast were Barygaya, Suppara, Calliena, Semylla, Mandagore, Palaepatme, Malizigara, Aurranobbas, Byzantine, Naura, Tyndis, Muziris and Nelcynda and the ports on the east coast were Tamralipti, Charitrapur, Paluru, Dantapur, Kalingapatnam, Pithunda, Sopatma, Ghantasala, Poduca, Puhar, Korkai and Camara.
• In the Gupta period , there was flourishing trade both internal and external. The wealth of the Roman Empire reached India through the ports of Kalyan, Chaul, Broach and cambay in western India. In the Andhra region the ports were Kadura and Ghantashala. Kaveripattanam and Tondai were ports of Pandya region.

Hence option 1st is correct.