Choose the word that is least like the other words in the following group:

Introduction / Context:
This is a classic "odd one out" problem in logical reasoning and general awareness. You are given four terms and must identify which item does not belong to the same category as the others. Such questions test your ability to recognise patterns, group similar ideas, and spot conceptual differences between options.

Given Data / Assumptions:

• Tsangpo: Name of a major river (Yarlung Tsangpo) flowing mainly through Tibet and associated regions.

• Hazaribagh: Name of a region/town in India, also known for the Hazaribagh Wildlife Sanctuary and a national park area.

• Kanha: Refers to Kanha National Park in Madhya Pradesh, a famous tiger reserve and wildlife sanctuary.

• Bandipur: Refers to Bandipur National Park in Karnataka, another well known wildlife sanctuary and tiger reserve.

• We assume a basic awareness of Indian national parks and geography, as is common in competitive exams.

Concept / Approach:
The approach is to look for a common category shared by most of the options. If three of the four items fall neatly into a single well known category, then the remaining one is the odd one out. Here, we look at what each name most commonly signifies: river, town, national park or wildlife sanctuary.

Step-by-Step Solution:
Step 1: Identify the primary association of Tsangpo. Tsangpo primarily refers to the Yarlung Tsangpo River, a major river system in Tibet that later becomes the Brahmaputra downstream. Step 2: Identify Hazaribagh. Hazaribagh is a town and district in Jharkhand, India. It is also associated with a wildlife sanctuary and national park area known for forest and wildlife. Step 3: Identify Kanha. Kanha is almost always used to refer to Kanha National Park in Madhya Pradesh, one of India's most famous tiger reserves and wildlife parks. Step 4: Identify Bandipur. Bandipur refers to Bandipur National Park in Karnataka, again a popular wildlife sanctuary and tiger reserve. Step 5: Compare the categories. Hazaribagh, Kanha and Bandipur are all strongly associated with wildlife sanctuaries or national parks in India. Tsangpo, on the other hand, is a river and not primarily known as a wildlife park.

Verification / Alternative check:
If you think loosely about "places with forests", you might try to argue that Tsangpo valley is also scenic and natural, but competitive-exam questions rely on the most standard textbook associations: Hazaribagh, Kanha and Bandipur appear in lists of national parks and tiger reserves, while Tsangpo appears in lists of important rivers. This confirms that Tsangpo belongs to a different category.

Why Other Options Are Wrong:
Hazaribagh, Kanha and Bandipur all represent wildlife areas or national parks, which form a natural group. None of them is a river name in common usage. Therefore they are similar to each other but different from Tsangpo. Picking any of them as the odd one out would ignore this strong shared category.

Common Pitfalls:
A common mistake is to focus only on whether a place is inside or outside India, but that is not the intended pattern here. Another error is not recognising Hazaribagh as associated with a wildlife sanctuary. Always recall standard geography and environment facts: rivers versus national parks versus cities.

Final Answer:
The word least like the others in the group is Tsangpo, because it is a river, whereas the others are primarily known as wildlife sanctuaries or national parks.