1. Polymer Science and Technology, CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India
2. Department of Physics, Indian Institute of Science, Bangalore 560012, India
3. Centre for Analysis, Testing, Evaluation & Reporting Services (CATERS), CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India
4. Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
5. NMR Research Centre, Indian Institute of Science, Bangalore 560012, India