Dr. Semwal is presently working as Assistant Professor at Govt. Postgraduate College, Rishikesh, India. She earned her PhD in the area of Natural Products having medicinal and dyeing properties. She screened more than 50 plants of medicinal use in various laboratories in India and overseas for their scientific authentication. She developed various methods to isolate bioactive molecules from the plants. She also optimized some traditional dyeing methods in laboratories for industrial use. Around 70 research papers and 5 books are already in her credit. She has been a recipient of many prestigious awards including NRF Postdoctoral Fellowship, UGC-Dr DS Kothari Postdoctoral Fellowship and UGC-Research Fellowship for PhD. Her research interests are natural products chemistry and bioactivity of natural molecules.