The highest hill station in Manipur is reportedly located in:

Kangpokpi district
Tengnoupal district
Kamjong district
Pherzawl district

The correct answer is Kangpokpi district.

Kangpokpi district is a district in the state of Manipur in northeastern India. The district headquarters is Kangpokpi town. The district is located in the western part of the state and is bordered by the districts of Senapati, Ukhrul, Chandel, Churachandpur, and Imphal East. The district has a population of over 200,000 people and is predominantly inhabited by the Kuki Naga people.

The highest hill station in Manipur is reportedly located in Kangpokpi district. The hill station is called Mao Hills and is located at an altitude of over 2,000 meters. Mao Hills is a popular tourist destination and is known for its beautiful scenery and its cool climate.

The other options are incorrect. Tengnoupal district is located in the southern part of the state and is bordered by the districts of Chandel, Churachandpur, and Imphal West. Kamjong district is located in the eastern part of the state and is bordered by the districts of Senapati, Ukhrul, and Tamenglong. Pherzawl district is located in the northwestern part of the state and is bordered by the districts of Churachandpur, Imphal West, and Ukhrul.