1. Inorganic and Physical Chemistry Laboratory CSIR-Central Leather Research Institute Adyar Chennai 600 020 India
2. Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201 002 India
3. Photosciences & Photonics Section Chemical Sciences and Technology Division CSIR – National Institute for Interdisciplinary Science and Technology 695 019 Thiruvananthapuram India