1. Department of Chemistry, Motiram Baburam Government Post Graduate College, Haldwani, Uttarakhand, India
2. Centre for Aromatic Plants (CAP), Industrial Estate, Selaqui-248011, Dehradun, Uttarakhand, India
3. Department of Microbiology, Dolphin P.G. Institute of Biomedical & Natural Sciences, Dehradun, Uttarakhand, India
4. Department of Chemistry, Lalit Mohan Sharma PG College, Shri Dev Suman University Rishikesh, Dehradun, Uttarakhand, India