South Andaman and Little Andaman are separated by the:

The Duncan Passage is a strait in the Andaman Islands that separates South Andaman (along with Rutland Island) in the north from Little Andaman in the south. It connects the Bay of Bengal on the west with the Andaman Sea on the east.

Features of the Duncan Passage:

• It is about 48 km wide.
• It contains several small islands, rocks and reefs, such as the Cinque Islands, Passage Island and North and South Brother islands.
• It is an important route for ships moving between Sri Vijaya Puram (Port Blair) and the southern islands or the Andaman Sea.
• Navigation can be difficult because of shallow areas and strong currents.

Geography of the Andaman group:

• The Andaman Islands include North Andaman, Middle Andaman and South Andaman (together called Great Andaman), along with Little Andaman, Baratang, Rutland and many other islands.
• Little Andaman is the fourth largest island of the Andaman group and is home to the Onge tribe.
• Saddle Peak (about 732 metres) on North Andaman is the highest point of the Andaman and Nicobar Islands.

Water passages around the Andaman and Nicobar Islands (north to south):

• Coco Channel: between the Coco Islands (Myanmar) and North Andaman.
• Duncan Passage: between South Andaman and Little Andaman.
• Ten Degree Channel: between Little Andaman and Car Nicobar (the Andaman and Nicobar groups).

Sri Vijaya Puram:

• Port Blair, the capital of the Andaman and Nicobar Islands, was renamed Sri Vijaya Puram in September 2024.
• It is the site of the Cellular Jail, where many freedom fighters were imprisoned during British rule.

Why not the other options?

• ✗The Ten Degree Channel lies farther south, between Little Andaman and Car Nicobar.
• ✗The Coco Channel lies north of North Andaman.
• ✗The Macpherson Strait separates South Andaman from Rutland Island.