Contacts General Enquires Dr. Suraj Kumar Sinha Department Of Physics Pondicherry University R.V. Nagar, Kalapet, Puducherry-605014, INDIA. Ph (Off):+91-413-2654784, Mobile No.:+91-944-228-4821, +91-914-245-8931 NSGD2023@gmail.com, sinhasuraj.phy@pondiuni.edu.in