Land Based

National Highway 4 or NH 4: It is 230.7 km in length. This highway is known as the Andaman Trunk Road (The Great Andaman Trunk Road). **Pair 1 is incorrect:** A stretch of national highway from Mumbai to Pune to Hubli to Bangalore to Chennai was earlier called NH 4 before the renumbering of national highways in the year 2010. The former NH 4 is now renumbered as NH 48. **Pair 2 is incorrect:** National Highway 6 is a national highway in India running from Jorabat in Meghalaya to Selling in Mizoram. The highway passes through the Indian states of Meghalaya, Assam, and Mizoram. **Pair 3 is incorrect:** National Highway 15 (NH 15) starts from Baihata in Assam and terminates at Wakro in Arunachal Pradesh.

If you travel by road from Kohima (Nagaland) to Kottayam (Kerala), you would need to travel through a minimum of 7 states within India: - Nagaland (Origin - Kohima) - Assam - West Bengal - Odisha - Andhra Pradesh (or) - Tamil Nadu (depending on the chosen route) - Kerala (Destination - Kottayam)  Hence, option B is the correct answer.

**Statement 1 is incorrect**: The East-West Corridor is a part of the National Highways Development Project (NHDP) in India, which aims to connect Silchar in Assam to Porbandar in Gujarat. It does not connect Dibrugarh in Assam and Surat in Gujarat.  **Statement 2 is incorrect:** The Trilateral Highway is a connectivity project that aims to connect Moreh in Manipur, India, with Mae Sot in Thailand via Myanmar. It is an important infrastructure project to enhance trade, connectivity, and people-to-people ties among the three countries.  **Statement 3 is incorrect:** The Bangladesh-China-India-Myanmar Economic Corridor (BCIM) is a proposed economic corridor that aims to connect Kunming in China with Kolkata in India, passing through Myanmar and Bangladesh. Varanasi in Uttar Pradesh is not directly connected to this corridor.  **Thus, none of the statements are correct**