4. Invited talk on “New Generations Sensors and Biosensors based on Conducting Polymers” Kyushu Institute of Technology, Japan (18th Oct. 2007)
5. Invited talk in the National Seminar on “Novel Tools of Nanotechnology, Materials Science and Geological Techniques in Standardization of Ayurvedic Bhasma“ Organized by Prof. S.N. Tripathi Memorial Foundation, Varanasi (28th-29thDec. 2007).
6. Invited talk in the International Conference on Nanomaterials Toxicology, Organized by Indian Institute of Toxicological Research, Lucknow (5th-7thFeb. 2008).
7. Invited talk in the National Symposium on “Recent Advances in Toxicological Studies: Molecular and Physiological Aspects” Organized by MMV, Banaras Hindu University, Varanasi (27th-28thFeb. 2008).
8. Invited talk in the National Seminar on “Advanced Techniques of Molecular Biology“Organized by Prof. S.N. Tripathi Memorial Foundation, Varanasi (7th-9thMarch. 2008).
9. Invited talk in the 5th International Conference on “Molecular Electronics and Bioelectronics” Organized by KIT, Japan and Japan Applied Physics Soc. (15th- 18th March 2009).
10. Invited talk in the International conference on “Advances in Material and Processing Technologies (AMPT) Organized by Kulliyyah of Engineering, IIUM, Kuala Lumpur, Malaysia (26-29 Oct. 2009).
11. Invited talk in the India-Japan workshop on “Biomolecular Electronics and Organic nanotechnology for environment prevention” Organized by NPL. N. Delhi, (17-19 Dec. 2009).
12. Invited talk in the Seminar cum Workshop on Particle Characterization of Nano-Pharmaceuticals, Organized by, Department of Pharmaceutics, IT, BHU (20th March 2010).
