1. Department of Physics, Govt. First Grade College, Sira, Tumkur, India
2. Department of Physics, Bharathiar University, Coimbatore, India
3. Department of Physics, Amrita School of Engineering, Amrita Viswa Vidyapeetham, Bengaluru, India
4. Prof. C.N.R. Rao Centre for Advanced Materials, Tumkur University, Tumkur, India
5. Department of Physics, Govt. First Grade College, Tumkur, India
6. Department of Physics, B M S Institute of Technology, Bangalore, India