Which of the following is the easternmost state of India when measured by longitude?

Introduction / Context:

India's extreme points are frequently asked in geography examinations. Knowing which state is easternmost, westernmost, northernmost, or southernmost helps build a mental map of the country. This question focuses on the easternmost state of India, which is determined by longitude, that is, by how far east the state extends relative to the prime meridian.

Given Data / Assumptions:

• The options are Assam, Nagaland, Arunachal Pradesh, and Manipur.
• We are looking for the state that lies farthest to the east in terms of longitude.
• Easternmost point means the state that stretches closest to the International Date Line compared with the others.
• We use standard political maps of India as our reference.

Concept / Approach:

The approach is to recall the arrangement of north eastern states on the map. Arunachal Pradesh is located to the north of Assam and extends further east than Nagaland and Manipur. India's easternmost inhabited point is often associated with the region of Kibithu or Dong in Arunachal Pradesh. Therefore, among the given options, Arunachal Pradesh holds the position of being the easternmost state of India based on longitude.

Step-by-Step Solution:

Verification / Alternative check:

Verification can be done by checking the longitude values of the extreme points of these states on a detailed atlas. The easternmost longitudes of Arunachal Pradesh are greater (more east) than those of Nagaland, Manipur, or Assam. Additionally, standard fact lists for competitive exams specifically mention Arunachal Pradesh as the easternmost state of India. This consistent information across multiple sources confirms our choice.

Why Other Options Are Wrong:

Common Pitfalls:

Students sometimes assume that states like Nagaland or Manipur, which are known to be far east, must be the easternmost, especially if they do not visualise the map clearly. Another mistake is confusing the easternmost state with the easternmost union territory or island. To avoid such errors, always remember that in the list of Indian states, Arunachal Pradesh is the one that stretches farthest to the east on the continental landmass.

Final Answer:

The easternmost state of India is Arunachal Pradesh.