1. Department of Botany, Periyar University, Salem, India
2. Chemical Engineering and Process Development, CSIR- National Chemical Laboratory (NCL), Pune, India
3. Sri Paramakalyani Centre for Excellence and Environmental Sciences, Manonmaniam Sundaranar University, Alwarkurichi, India
4. Department of Botany, Thiru Kolanjiappar government arts College –Virudhachalam, Cuddalore, India