NESAC has taken up preparation of Assam River Atlas in collaboration with Assam Water Resource Department during 2017 with a funding from Assam State Disaster Management Authority (ASDMA). In this project, all the major and minor rivers within the administrative boundary of Assam have been mapped at a scale of 1:5000. Mapping includes the incorporation of river banks, sand deposits, embankments, hydro-meteorological observatories, sluice gates, major locations, roads, railway lines, etc. The LULC map for all the rivers has been created with a defined buffer. In addition to this, district wise river catchment maps are prepared showing the origin of all the rivers entering the respective districts of Assam. In an interim review of this project during January, 2018, Honourable Chief Minister, Assam, expressed satisfaction and optimism on the usefulness of this exercise in river planning & development in Assam in future. To utilize the generated layers up to the maximum possible extent, the generated layers are uploaded in a robust and user-friendly geoportal (https://riveratlas.nesdr.gov.in) which can be accessed by the public for general river related information as well as by concerned river management stakeholder offices for taking engineering and field level decisions. As part of Assam River Atlas, a detailed technical report comprising of district wise river maps has been prepared, and the same was released by Shri Jishnu Barua, Honourable Chief Secretary, Government of Assam on 23 March 2021.