Professor Narendra Nath Bhattacharyya (21 January 1936 - 29 January 2023): His Academic Career and Contributions . SACI [Internet]. 2023 Mar. 29 [cited 2025 Apr. 2];10(4):18-37. Available from: https://spaceandculture.in/index.php/spaceandculture/article/view/1351