State helicopter services will be unavailable from December 24 to 26 and from December 31, 2017 to January 2, 2018. A press release from the Nagaland State Transport addl. general manager, Shikaho P. Yeptho said that this was due to “regular schedule/sortie as well as for chartering in view of Christmas and New Year and for technical maintenance of the Helicopter”. It added that the inconvenience is regretted.