How many districts are contiguous to international boundary in Uttarakhand state ?

The correct answer is (b), 4.

The four districts in Uttarakhand that are contiguous to the international boundary are:

• Chamoli
• Pithoragarh
• Uttarkashi
• Chamoli is located in the Garhwal region of Uttarakhand. It is bordered by the districts of Rudraprayag, Tehri Garhwal, Pauri Garhwal, Almora, and Pithoragarh. The international border between India and China runs through the Chamoli district.
• Pithoragarh is located in the Kumaon region of Uttarakhand. It is bordered by the districts of Almora, Nainital, Champawat, Bageshwar, and Chamoli. The international border between India and Nepal runs through the Pithoragarh district.
• Uttarkashi is located in the Garhwal region of Uttarakhand. It is bordered by the districts of Chamoli, Rudraprayag, Tehri Garhwal, Dehradun, and Haridwar. The international border between India and China runs through the Uttarkashi district.

The other districts in Uttarakhand are not contiguous to the international boundary.