Which among the following was declared the first national park of India and is now famous for tiger conservation?

Introduction / Context:
India has a large network of national parks, but one of them holds the distinction of being the first national park established in the country. This park is also well known today as a key tiger reserve. Questions like this are standard in environment and wildlife sections of competitive exams.

Given Data / Assumptions:

• The question asks for the first national park in India. • The options list several famous national parks. • The park in question is also strongly associated with tiger conservation.

Concept / Approach:
The first national park in India was established in 1936 as Hailey National Park and was later renamed after the hunter naturalist Jim Corbett. It is now known as Corbett National Park and lies in Uttarakhand. Although Keoladeo, Bandipur, Periyar and Kaziranga are also important parks, they were declared later and are not recognised as the first national park.

Step-by-Step Solution:
Step 1: Recall that Hailey National Park, established in the 1930s, was India's first national park. Step 2: Remember that this park was later renamed Corbett National Park after Jim Corbett. Step 3: Note that Keoladeo is famous as a bird sanctuary in Rajasthan and became a national park later. Step 4: Recognise that Bandipur, Periyar and Kaziranga are well known but were notified as national parks after Corbett. Step 5: Therefore Corbett National Park is the correct choice as the first national park of India.

Verification / Alternative check:
Most environmental studies books clearly mention that Corbett National Park, earlier called Hailey National Park, holds the distinction of being the first national park in India. It is also one of the original Project Tiger reserves, which adds to its importance in conservation history. No other park in the options shares this specific historical status.

Why Other Options Are Wrong:
Keoladeo National Park: A famous bird sanctuary at Bharatpur, but declared a national park later than Corbett. Bandipur National Park: Located in Karnataka, declared later and mainly known as a tiger reserve of the southern region. Periyar National Park: In Kerala, famous for its lake and wildlife, but not the first national park. Kaziranga National Park: Located in Assam and world famous for one horned rhinoceros, but established as a national park after Corbett.

Common Pitfalls:
Sometimes students confuse the oldest wildlife sanctuary, oldest tiger reserve, and first national park. They may also be influenced by how often a park appears in news reports and mistakenly consider a more publicised park as the first. To avoid such confusion, remember the specific fact that Corbett National Park, originally Hailey National Park, is the first national park of India.

Final Answer:
The first national park of India is Corbett National Park.