1. Gauhati University, UGC Academic Staff College, Guwahat i- 21 days (28 January to 17 February, 2013).
2. A online Refresher Course in “Plant Taxonomy, Ecology and Biodiversity Conservation” organised by Department of Botany, Panjab University, Chandigarh, India sponsored by Indian Academy of Sciences, Bangalore Indian National Science Academy, New Delhi The National Academy of Sciences India, Allahabad (From April 02 - April 18, 2022)
3. UGC Sponsored online Interdisciplinary Subject Refresher Course in Environmental Studies organised by UGC – HRDC, Aligarh Muslim University, Aligarh (From 27 September 2022 to 11 October 2022 )