1. Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur 247001, Uttar Pradesh, India
2. Department of Paper Technology, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur 247001, Uttar Pradesh, India
3. Department of Physics, Scottish Church College, 1 and 3 Urquhart Square, Kolkata 700006, West Bengal, India