There are no such tensions in Nagaland. The people are very friendly, but advised not to make enemies with anyone. There are rumours that this place is not safe at all, however once you visit this place you'll know that the people there are really friendly, broadminded and helpful.
Over 90% of the population are christians. There are different denominations like Roman Catholic, Baptist, Pentecostal, Assembly of God, Seventh-Day Adventist Church.
If you are visiting Kohima during winter make sure you carry warm clothings with you. The air is CHILLED COLD in the morning and after 2 pm.