Dr. Malla is a Professor of Microbiology and Head of the department of biotechnology at Central Department of Biotechnology, Tribhuvan University (TU), Nepal. After completing her Ph.D. degree from Jawaharlal Nehru University (JNU), India, Dr. Malla served in different academic positions within TU. She is also a member of the course development committee in TU and Purbanchal University and a visiting faculty in All India Institute of Medical Sciences (AIIMS).

Additionally, she is also involved in several organizations, like the Nepalese Society of Microbiology (president), International Nepalese Biomedical Society, Nepal Chapter (vice-president), Nepal Biotechnology Association, etc. She is the recipient of Shikshya Puraskar, 2006 and Nepal Bidhya Bhusan Kha, 2007.

Dr. Malla had supervised more than 20 postgraduate students (including Ph.D. and Masters) in TU and JNU. She had also authored several peer-reviewed scientific articles and books.