1. Bioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi, India
2. Department of Chemistry, FGM Government College, Adampur Hisar, Haryana, India
3. P.G. Department of Chemistry, R.D.S. College, B.R.A. Bihar University, Muzaffarpur, Bihar, India
4. Directorate of Secondary Education, GSSS Hizrawan Khurd (3371), Fatehabad, Haryana, India