1. Government First Grade College , Tumkur 572101, India
2. Government College (Autonomous) , Mandya 57140, India
3. Banaglore University Department of Physics, , Bangalore 560056, India
4. PES Institute of Technology Department of Physics, , Mandya 571401, India
5. Government First Grade College , Shivamogga 577201, India
6. Government First Grade College , Srirangapatna 571438, India