1. Department of Biological Sciences Indian Institute of Science Education and Research Kolkata Mohanpur 741246 India
2. Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata Mohanpur 741246 India
3. Present address:Department of Biological Sciences NUS Environmental Research Institute (NERI) National University of Singapore (NUS) Block S2 #05-01, 16 Science Drive 4 Singapore 117558 Singapore
4. Centre for Advanced Functional Materials Indian Institute of Science Education and Research Kolkata 741246 Mohanpur India
5. Centre for Climate and Environmental Studies Indian Institute of Science Education and Research Kolkata 741246 Mohanpur India