1. Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal Bypass Road, Bhauri Bhopal 462066, Madhya Pradesh India
2. Department of Chemistry; Institute of Science; Banaras Hindu University; Varanasi - 221005 India
3. Photosciences and Photonics Section; Chemical Science and Technology Division; CSIR-National Institute for Interdisciplinary Science and Technology; Thiruvananthapuram - 695019 India