1. Department of Chemistry, Veer Madho Singh Bhandari Uttarakhand Technical University, Nanhi Pari Seemant Engineering Institute, Pithoragarh, India
2. Department of Chemistry, Soban Singh Jeena University, Almora, India
3. Department of Chemistry, K.K. Pt. B.D. Pandey Govt. Post Graduate College, SSJ University, Bageshwar, India
4. Division of Research & Innovation, Uttaranchal University, Dehradun, India