Kohima: Kohima is facing a total black out threat as one of the pylons of the main transmission line to this capital town of Kohima from Dimapur collapsed on Tuesday and another was partially damaged. According to the Power department sources, one pylon on the 132 KV transmission line, connecting Kohima and Karong in Manipur, had collapsed following a landslide near Phesama under Kohima district on July 26 last. (UNI)