If you travel by road from Kohima to Kottayam, what is the minimum number of States within India through which you can travel, including the origin and the destination?

The correct option is 7.

To find the minimum number of Indian States you must travel through when going by road from Kohima (Nagaland) to Kottayam (Kerala), we need to determine the shortest valid route through contiguous Indian states, including both the origin state and the destination state.

Let us trace the step-by-step route passing through the minimum number of states:

1. Nagaland (Origin: Kohima is the capital of Nagaland)
2. Assam (Traveling west from Nagaland into Assam to cross out of the North-Eastern region via the Siliguri Corridor)
3. West Bengal (Passing through the Siliguri Corridor / "Chicken's Neck" into eastern India)
4. Odisha (Moving south along the eastern coastal highway route from West Bengal)
5. Andhra Pradesh (Continuing south down the eastern coast)
6. Tamil Nadu (Moving from Andhra Pradesh into Tamil Nadu to access southern mountain passes leading to Kerala)
7. Kerala (Destination: Kottayam is located in Kerala)

Counting all states in this route, including the origin (Nagaland) and the destination (Kerala):
Nagaland (1) ⇒ Assam (2) ⇒ West Bengal (3) ⇒ Odisha (4) ⇒ Andhra Pradesh (5) ⇒ Tamil Nadu (6) ⇒ Kerala (7).

Thus, the minimum number of States within India through which you can travel is 7.