First ever containership from Kolkata Port to Agartala was sent through which one of the following Ports of Bangladesh in July 2020?

The correct answer is D) Chattogram (Chittagong). The first containership from Kolkata to Agartala moved under the Indo-Bangladesh Protocol Route, sailing to Chattogram port and then moving upriver towards Ashuganj, with cargo finishing its journey by road to Agartala. This is the trade-route concept the question is testing: India's northeastern states reach the sea through Bangladeshi ports, because the Siliguri Corridor limits direct road and rail links.

• Benapole is a land port on the Bangladesh-India border, handling road and rail cargo. It is not a seaport, so it cannot receive a containership.
• Maloti is not a major port in this context. It is a river and inland location and does not fit the route.
• Payra is a deep-sea port in southern Bangladesh, but it was not the port used for this first Kolkata-Agartala containership.

For Mains, this connects to India's Act East Policy, the Northeast's connectivity problem and the use of multimodal transport corridors, including the Kaladan project and the Sabroom link.

Trap: Students often pick Benapole because it is the most familiar Bangladesh-India transit point. Benapole is a land port, and this question asks about a seaport-linked containership route.