The correct answer is 2933 km. Explanation & Key Takeaways: • The actual mainland distance of India from east to west is approximately 2933 kilometers. • This distance is measured between the easternmost point, Arunachal Pradesh (Kibithu), and the westernmost point, Gujarat (Ghuar Mota). • The geographical extent of India lies between 68°7' E longitude (west) to 97°25' E longitude (east). • India's geographical spread from east to west plays a significant role in its diverse climate, culture, and agricultural patterns. • This vast expanse contributes to India having multiple time zones geographically, but the country follows a single standard time (Indian Standard Time, IST). Related Concepts: • India’s Geography and Strategic Significance • India is the 7th largest country in the world, with a total area of approximately 3.28 million square kilometers. • The country is bordered by the Arabian Sea on the west, the Bay of Bengal on the east, and the Indian Ocean to the south. • The north-south extent of India (from Kashmir to Kanyakumari) is approximately 3214 kilometers. • India’s geographical diversity also includes the Himalayan mountain ranges in the north, the Thar Desert in the west, and the coastal plains in the east and west. • The vast geographical diversity contributes to India’s rich cultural, linguistic, and biological diversity.