Which one of the following ports handled the north Indian trade during the Gupta period ?

Tamralipti (Tamralipta/Tamluk) was the principal eastern emporium that linked the Ganges basin and northern India to the Indian Ocean trade network; under Gupta rulers (notably Chandragupta II) Tamralipti became a busy maritime hub, handling north Indian trade routes to Southeast Asia and beyond [1]. By contrast, ports like Calliena (Kalyan), Chaul and the Malabar ports served the western and southern coastal trades, rather than acting as the main outlet for north Indian inland commerce [2]. Therefore Tamralipti is the correct choice for the port that handled north Indian trade during the Gupta period.

Sources

1. [1] https://www.worldhistory.org/Gupta_Empire/
2. [2] History , class XI (Tamilnadu state board 2024 ed.) > Chapter 7: The Guptas > Trade and Commerce > p. 97