1. Chemistry and Physics of Materials Unit (CPMU) School of Adv. Mat. (SAMat) Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Bangalore 560064 India
2. New Chemistry Unit (NCU) School of Adv. Mat. (SAMat) Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Bangalore 560064 India
3. Present address: Tata Institute of Fundamental Research Hyderabad, Gopanpally 500046 Telangana India