K.G.Purushotham*, P.Arun, J.Johnsy Jayarani, R.Vasanthakumari, and D. ChamundeeswariInvitro Antibacterial and Antifungal Assay of Tectona grandis - A Screening Study. Research Journal of Pharmacognosy and Phytochemistry Volume 02, Issue 01, January - February, 2010(RJPP)ISSN 0975-2331.
K G Purushotham*, P Arun, J Johnsy Jayarani, R Vasanthakumari, L Sankar, Bijjam Raviprakash Reddy Synergistic Invitro Antibacterial Activity of Tectona grandis leaves with Tetracycline Vol.2, No.1, pp 519-523, Jan-Mar 2010 International Journal of PharmTech Research CODEN (USA): IJPRIF ISSN : 0974-4304
K.G.Purushotham*, P.Arun, J.Johnsy Jayarani, R.Vasanthakumari Screening Antimycobacterial activity of four Indian medicinal, The Bioscan Vol .2 Issue Jan-march 2010, ISSN 0973-7049.
P.Arun* K G Purushotham, J Johnsy Jayarani Dr.Vasanthakumari & Dr.Chamundeeswari Screening Antibacterial activity of various extracts of Lawsonia inermis Research journal of Pharmacognosy and Phytochemisry Vol .2 Issue 3, May-June 2010, ISSN 0975-2331
P.Arun*,K.G.Purushotham, Johnsy Jayarani J and VasanthaKumari Invitro Antibacterial Activity of Oldenlandia umbellata an Indian medicinal Plant Journal of Pharmaceutical Science and Technology Vol. 2 (4), 2010, pp 198-201 ISSN:0975-5772
K.G. Purushotham* and Dr.Vasanthakumari, Plant extract used as powerful detergent and disinfectant. National Symposium on Current trends in Medicinal plants and Herbal Technology, Department of Plant Science, KM Centre for PG Studies, Pondicherry (Sponsored by AYUSH, Govt. of India), 22nd July 2006.
K.G. Purushotham* and Dr.Vasanthakumari, Comparision of efficacy of three methods of acid fast staining.- Association of Microbiologists of India (AMI) 48th Annual Conference held at Indian Institute of Technology Madras during 18th -21st December 2007.
Participated in SEMINAR ON “BIOTECHNOLOGY :UK and Indian Perspectives” 17 and 18 October 2008 Anna university, Chennai-25
K.G. Purushotham* and Dr.Vasanthakumari, Plant extract used as powerful detergent and disinfectant. National Symposium on Current trends in Microbiology Department of Microbiology Valliyammal collegefor women.
Participated in National symposium on Emerging infections in India- Current perspectives, Vel’s college of science, Department of Microbiology held during 14th -15th February 2005 Chennai-600 117.