KATHMANDU, March 16: Nepal Academy of Science and Technology (NAST) has begun the process to publish 'who is who in science and technology directory', a directory of personal details of Nepali scientists and technicians who have done doctorate in science and technology (natural science, agriculture science, medical science, engineering, mathematics, information and technology) and acquired expertise equivalent to that, working at the governmental or non-governmental office in Nepal or abroad, it has been said.