1. Poster presented entitled “Organocatalytic Diastereoselective Intramolecular Aldol Reaction: A New Approach towards Imino Sugars” presented at ‘International Symposium on Advances in Organic Chemistry (INSOC)’ 9-12 January 2006 at M. G. University, Karela, India.
2. Poster presented entitled “Organocatalytic Diastereoselective Intramolecular Aldol Reaction: A New Approach towards Imino Sugars” presented on Science day (28 Feb. 2006) at National Chemical Laboratory, Pune, India. (Best Poster award)
3. Three months workshop (2005-06) in organic chemistry for asymmetric synthesis, sectroscopic analysis and Oral presentation at National Chemical Laboratory, Pune, India.
4. 6th International Symposium on Catalysis in Multiphase Reactors (CAMURE-6) and 5th International Symposium on Multifunctional Reactors (ISMR-5) (14-17 January 07) at National Chemical Laboratory, Pune, India.
5. Invited Lecture presentaion at BASF-India (Mumbai) for Young Indian Scientist award 2006-07.
6. Invited Lecture presentaion at Tokyo University of Science, Tokyo 25 June 2007.
7. “International Conference on Asymmetric Organocatalysis” 28-29 May 2007 at Otsu, Japan.
8. The 2nd global COE inetrnational symposium on ‘Practical Chemical Wisdom’ 4-5 July 2008, Waseda University, Tokyo (Japan).
9. ‘5th Symposium on Chemical Approach to Chirality’ 1st December 2008, Morita Memorial Hall, Tokyo University of Science, Tokyo.
10. Poster presented entitled “Functionalization of Single-Walled Carbon Nanotubes Using click Chemistry” at International Conference on Smart Materials Smart/Intelligent Materials and Nanotechnology and 2nd International Workshop on Functional Materials and Nanomaterials (SmartMat-08 & IWOFM-2), 22-25 April 2008, Chiang Mai, Thailand.
11. Lecture presentation entitled “Click-chemistry” as a tool for the functionalization of carbon nano-tubes (CNTs)” at “National conference on Nanoscience and nanotechnology (NCNN-2010)” at VNIT-Nagpur during 18-20 Jan. 2010. (Best Lecture presentation award)
12. Lecture presentation entitled “Organocatalysis” A Green approach for the synthesis towards amino-polyols” during National conference on Green chemistry (NCGC-2010) at SRM-University NCR-Delhi-Meerut Road, Ghaziabad (16-17 September 2010).
13. Invited Lecture entitled “Development of New Asymmetric Reactions and their Synthetic Applications” delivered at UGC-Academic Staff College for Refresher Course in Chemistry-2011 for the college teachers at UoH-Hyderabad on 21st July 2011.
14. Invited Lecture entitled “Organocatalysis: A Recent Trend in Asymmetric Synthesis (Emphasize on enamine catalysis)” delivered on 02nd September 2011 at Central University of Rajasthan, Kishangarh (Rajasthan).
15. Invited Lecture entitled “Organocatalysis: A Recent trend in Asymmetric Synthesis (Emphasize on enamine catalysis” delivered at Department of Chemistry, Guru Nanak Dev University (GNDU), Amritsar on 16th September 2011.
16. Lecture presentation entitled “Organocatalysis” A Green approach for the synthesis towards amino-polyols” during National conference on Chemistry, Chemical Technology & Society” at Tezpur University, Tezpur, Assam during 11-12 November 2011.
17. Lecture presentation entitled “Organocatalysis” A Green approach for the synthesis towards amino-polyols” during International conference on “Green Chemistry” organized by Department of Chemistry, Central University of Rajasthan, Rajasthan during 07-09 December 2011.
18. Poster Presentation entitled "An organocatalytic direct Mannich–cyclization cascade as [3+2] annulation: Asymmetric synthesis of 2,3-substituted pyrrolidines" during International Symposium on Chemistry and Chemical Biology of Natural Products (CCBNP-2012) on 2-4 Aug 2012 at IICT-Hyderabad. (Best Poster award)
19. Invited lecture entitled "Organocatalysis in Asymmetric Synthesis: A Green Strategy for Small Molecule Natural Products (SMNPs) Synthesis" at National Seminar on "Significance of Green Strategies for Environmental Protection" by Department of Chemistry at KBN-College, Vijaywada (A.P.) during 14-15 December 2012.
20. Oral presentation entitled “Organocatalysis as Green Strategy For the Asymmetric Synthesis of Small Molecule Natural Products (SMNPs)” during Conference on "Emerging Trends in Development of Drugs and Devices" at Department of Chemistry, University of Delhi, during 21-23 January 2013.
21. Oral Presentation entitled “An organocatalytic direct Mannich–cyclization cascade as [3+2] annulation: asymmetric synthesis of 2,3-substituted pyrrolidines” during 19-International conference of Indian Society of Chemists and Biologists (ISCB) at M. S. University, Udaipur (2-5 March 2013).
22. Lecture entitled “Organocatalysis: A Recent Trend in Asymmetric Synthesis of Small Molecule Natural Products (SMNPs)” at National Institute of Interdisciplinary Science and Technology-(NIIST-CSIR), Trivandrum on June 12, 2013.
23. Invited Lecture entitled “Asymmetric Organocatalysis: A Recent Trend in Asymmetric Synthesis Bioactive Natural Products” at Jawaharlal Nehru Centre For Advanced Scientific Research (JNCASR), Bangalore, on June 25, 2013.
24. Invited Lecture entitled “Organocatalysis: A Recent Trend in Asymmetric Synthesis of Small Molecule Natural Products (SMNPs)” at National Chemical Laboratory-(NCL-CSIR), Pune on June 27, 2013.
25. Oral presentation entitled “Organocatalytic Cascade Strategy For the Asymmetric Synthesis of Small Molecule Natural Products (SMNPs)” during National Conference on Frontiers in Physical, Chemical and Biological Sciences (FPCBS-2013) 4-6 October, 2013, Organized by Department of Chemistry University of Pune, Pune.
26. Invited Lecture entitled "Sustainable development in the area of asymmetric synthesis" on 03.01.2014 during UGC Refresher Course entitled "Newer Frontiers of Chemical Sciences for a sustainable Future" organized by UGC-ASC University of Rajasthan, Jaipur from 27.01.2014 to 15.02.2014.
27. Invited short lecture entitled “Organocatalytic Cascade Strategy For the Synthesis of Small Molecule Natural Products (SMNPs)” during 20th ISCB International Conference (ISCBC-2014) from 1-4 March, 2014 at Department of Chemistry, University of Delhi, Delhi.
28. Attended XVI-NOST conference held during April 4-7, 2014 at Hotel Jaypee Palace Agra.
29. Invited lecture entitled "Organocatalytic cascade strategy for synthesis of small molecule natural products (SMNPs)" during International Symposium on Recent Advances in Medicinal Chemistry (ISRAM-2014) from September 08-10, 2014 Department of Medicinal Chemistry, NIPER-Mohali