Dr. S P Aggarwal is the Director of the North Eastern Space Applications Centre (NESAC) of Department of Space, Govt. of India located in Umiam, Meghalaya, Dr. Aggarwal has taken important initiatives towards effective utilization of Space Technology for various development activities of NER such as Natural Resource Management, Disaster Risk Management, Weather forecasting, Satellite communication applications, ICT based applications and Geo-governance related applications. Prior to joining NESAC, Dr. Aggarwal contributed significantly in various sub-domains of water resources and hydrology such as hydrological modeling, Irrigation water management, Soil erosion assessment, Snow, ice and glacier melt studies, flood mapping, monitoring and flood early warning system, Cryosphere research in Antarctica and Arctic region during his illustrious career spanning over 25 years as a Scientist and Engineer IIRS (ISRO), Dehradun. As programme coordinator of the UN affiliated Centre for space science and technology education in Asia and the Pacific (CSSTEAP) during 2016-2021 periods, Dr Aggarwal played the pivotal role in strengthening the regional and international cooperation in capacity building in space science, technology and applications in the Asia-Pacific region. He interacted with different international organizations, UN agencies, foreign missions in India and Indian missions abroad to organize academic programme for participants from the Asia-Pacific region. These programmes included Remote Sensing and GIS, Satellite Communications, Satellite Meteorology and Global Climate, Space and Atmospheric Sciences and GNSS, conducted at IIRS, Dehradun and SAC and PRL Ahmadabad. Dr. Aggarwal is well known for his teaching skills. He has extensively contributed in various capacity building programmes of IIRS, which includes training programmes for user departments, Ministries of Central and State Governments, University faculty, etc. He has been a major contributor in all IIRS academic programmes viz. M.Tech. (RS & GIS), M.Sc. (Geoinformatics), PG Diploma, and other certificate courses. He has supervised 26 M.Tech students, 42 PG diploma students and guided 5 Ph D students. He has over 150 research publications in peer reviewed national & International journals along with authored book chapters. Dr. Aggarwal is an active member of several scientific and professional societies. He is served as Secretary of Technical Commission V of International Society of Photogrammetry and Remote Sensing (ISPRS) on Education and outreach (2016-2022). Currently He is Chair of ISPRS TC V, WG- 4 of Education and awareness in Disaster Risk Management He received several awards and honours including the Institution of Engineers of India (Uttarakhand state) conferring him with the Eminent Engineers Award for 2014 for his outstanding contributions in the field of Water Resource Engineering. He received the President Appreciation medal by ISRS for 2016, prestigious National Geospatial Award for Excellence by Indian Society of Remote Sensing for 2018 and National Award for e-Governance 2022 (Silver Medal) for Excellence in Adopting Emerging Technologies by Department of Administrative Reforms and Public Grievances, Govt. of India. He is a Fellow of the Institution of Engineers (India), Indian Society of Remote Sensing (ISRS) and Indian Association of Hydrologist.