1. Department of Botany, Mahatma Gandhi Central University, Motihari 845401, Bihar, India
2. Bioremediation Technology Research Group, Department of Botany, Bodoland University, Rangalikhata, Deborgaon 783370, Kokrajhar (BTR), Assam, India
3. University Department of Physics, T.M. Bhagalpur University, Bhagalpur 812007, India