NEW DELHI, April 15: Even as growing activities of Pakistan's ISI from Nepalese soil are causing security concern for India, the Himalayan Kingdom has emerged as a safe haven for the militant groups from the Northeast, reports PTI. Blessed with logistic support from Pakistan's ISI, the NSCN(IM) leaders Isak Chishi Swu and Thuingaleng Muivah had been regular visitors to Kathmandu since 1992 and pursuing their activities, Intelligence sources said here. The sources said this potent Naga group had been sending its recruits for training at an institute, near Lalitpur. The NSCN(IM) is also reported...