0    Repurposing of drugs for identifying new uses of existing drugs. 21st Feb. 2018, Department of Bioinformatics, Alagappa University, Karaikudi (Plenary lecture)

o    Corrosion of Bioimplants and its prevention. 2^nd March 2017, Department of Physics, Manonmaniam Sundaranar University, Tirunelveli, Tamil Nadu (Plenary lecture)

o    Microbiologically Influenced Corrosion: Challenges And Preventive Methods. 20^th Dec. 2016, Department of Microbiology, Alagappa University, Karaikudi,Tamil Nadu (Plenary Lecture)

o    Decolorization and degradation of azo dyes: Remedy for water pollution. 1^st Feb 2011, Brahmanand Degree College, Kanpur

o    Decolorisation of acid orange 6, Acid orange 7 and Remazol Violet in a sequential fixed film reactor. 28^th   May 2008,  BIOBRINZ, Lucknow

o    Biological Decolorization and Degradation of Azo dyes. 27^th Nov. 2006, Lady Doak College, Madurai, Tamil Nadu