1. Dey’s Medical Stores (Manufacturing) Limited, Bondel Road, Kolkata 700 019, India
2. Department of Chemical Technology, University College of Science and Technology, University of Calcutta, 92 APC Road, Kolkata 700 009, India
3. Lady Brabourne College, Kolkata 700 017, India
4. Department of Home Science, Viharilal College Campus, University of Calcutta, 20 B Judges Court Road, Kolkata 700 027, India