1. Department of Applied Chemistry, Birla Institute of Applied Sciences, Bhimtal, Nainital, Uttarakhand, India
2. Department of Chemistry, University of Minnesota, Minneapoilis, MN, USA
3. Department of Chemistry, Surajmal College of Engineering and Management, Kichha, Udham Singh Nagar, Uttarakhand, India
4. Department of Pharmaceutical Sciences, Bhimtal Campus, Kumaun University, Nainital, India
5. Division of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh, India