Delivered a talk on the topic "Supramolecular Approaches to Functional Cocrystal Design" in the microsymposium MS25 on "Supramolecular interactions behind crystal engineering" at European Crystallographic Meeting (ECM35) organized by Adam Mickiewicz University, Poznań, Poland held during August 25-29, 2025.

Presented a poster on the topic "Application of Mechanochemistry in Materials Design" at Zagreb University, Croatia in Solid-State Science & Research Meeting (SCIRES 2025) held during July 2-4, 2025. 

Delivered an Invited Talk on the topic "Mechanochemistry and Sustainable Future " in the "National Convention of Chemistry teachers & International Conference on Current Advances in Chemical Science Research and Education (CACSRE-2024)," at Mizoram University, Aizawl, India held during 6-8th November 2024.

Delivered a lecture during a training programme on ‘Chemical Science: Molecules to Materials’ as a resource person on the topic "Application of Mechanochemistry in Materials, Pharma and Agro Industry" organized from September 09–14, 2024 by Ashutosh Mukhopadhyay School of Educational Sciences (AMSoES) under the aegis of Malaviya Mission Teacher Training Centre (UGC-MMTTC), Assam University, Silchar.

Delivered an Invited Talk on the topic "Principles and Applications of X-Ray Diffraction (PXRD and SCXRD)" in "Industry-Academia Workshop On Analytical Instruments and Material Characterization", jointly organized by DST PURSE (Gauhati University) and SAIF Guwahati scheduled from the 18th to the 22nd of March, 2024. 

Delivered an Invited Talk on the topic "Mechanochemistry – A step towards Sustainable Future" in the "International Conference SusChemHeca-2024" at Tezpur University held on 14-15th March 2024. 

Delivered an Invited Talk on the topic "Mechanochemistry and Its Application in Materials Design" in the ‘International Conference on Emerging Trends in Biochemistry’ (ICETB-2024) at Nalbari College held between 11-13th March 2024.  

Delivered an Invited Talk on the topic “Medicinal Mechanochemistry: A Green Method for Screening Pharmaceutical Solid Form and Physicochemical Property Investigation” in International Conference on Nanomechanics for Pharmaceutical Applications (NPA-2023) organized by IIT Hyderabad, NCL Pune, Industron-Bruker and NIPER Kolkata held on 16th and 17th December 2023. 

Delivered an Invited Talk on the topic "Mechanochemistry and Its Application for Sustainable Future" in International Conference on Emerging Trends in Chemistry (ICETC-2023) organized by Department of Chemistry, Assam Don Bosco University, Assam, India in collaboration with Department of Chemistry, Pandu College, Assam held on 16th and 17th March 2023.

Delivered a lecture on the topic "Application of Crystal Engineering in Pharma and Agro Industry" as a resource person in a refreshers course in Chemistry organized by UGC-HRDC Pondicherry University from 1st to 14th June 2022. 

Deliver a lecture in the One-week Training Program on “Opportunities for Research and Innovation using the DST-sponsored Facilities of Gauhati University” held from 3rd to 9th May, 2022. 

Delivered a talk on Crystal Structure Determination on 14-02-2022 as a Resource Person in the workshop on "Opportunities for Research and Innovation Using the Facilities of SAIF-Guwahati" from 14th to 23rd February 2022.

Delivered a talk in Joint Conference : African Light Source, Pan African Conference on Crystallography, and African Physical Society, South Africa, 15-19 November 2021 hosted by X-TechLab.  

Invited talk in a Virtual National Conference on Prof. K. Banerjee Microsymposia series in Crystal Engineering-2020, 2nd June, 2020.

Poster presented in Virtual International Conference CEMWOQ 6.5 organized by McGill University on 30-31, May, 2020. 

Co-convener of International Conference on Emerging Trends in Chemical Sciences (ETCS-2020) organized by Department of Chemistry, Gauhati University, 13-15th February, 2020.

Invited talk in a National Conference On Green, Sustainable and Evolving Sciences (GSES-2019) organized by Cotton University on 28-29th June 2019.

Invited talk in a Lecture Series on International Year of Periodic Table organized by Department of Chemistry, Science College-Kokrajhar on 15th May 2019.

Invited talk in a Lecture Series on Materials Science organized by Department of Applied Sciences, GU-IST on 29th March 2019.

Invited talk in an International Conference FCASI-2018 organized by University of Rajasthan, 21st and 22nd December, 2018.  

Organizing Committee member and Invited talk in a Workshop on X-ray Crystallography organized by SAIF, Gauhati University, 27th July to 1st August 2018.

Jt. Convener and Invited talk in Emerging Trends in Chemical Sciences (ETCS-2018) organized by Department of Chemistry, Gauhati University, January 29, 2018.

Invited talk in a conference on mechanical properties of molecular crystals organized by Indian Academy of Science, Bangalore, November 26-30, 2017 at Coorg, India.

Presented poster in 24th IUCR Congress, August 21-28, 2017 at Hyderabad, India.

Co-convener of 20th CRSI-NSC 2017, February 2-5, 2017, Gauhati University, Assam.

Invited talk in Two Days National Workshop on Application of X-Ray Crystallography for Molecular Structure Determination, 08-09 December 2016 at NIT Agartala, Tripura. 

Organized IUCr Outreach Program for School/ College students in NIT Meghalaya on 4th October 2016.

Organized IUCr Outreach Program for School/ College students in B. Borooah College, Guwahati on 20th August 2016.

Invited talk in National Symposium on Natural Products: Prospects & Perspectives 2016, 21-22 March 2016 at NEIST Jorhat, Assam.

Invited talk in India-Bangladesh Structural Chemistry Conference (IBSCC) 2015, 18-19 September 2015 at IISER Kolkata. 

Delivered a lecture in Cipla Ltd. R & D Centre, Mumbai on 15th January 2015.

Poster presented on International Conference on Structural Chemistry of Molecules and Materials (SCOMM 2014), 30th Nov - 2nd Dec, 2014 in Kolkata.

Co-convener of National Workshop on Crystallography Education 2014-GU, November 8, 2014, Gauhati University, Assam.

Topological methods in Crystal Chemistry and Materials Science, 9-13 September 2013 in Bâtiment Batochimie, EPFL, Lausanne, Switzerland.

Oral presentation on Israel Crystallographic  Association Annual Meeting, May 2013 in The Technion–Israel Institute of Technology, Haifa, Israel.

International Conference on “Chemistry: Synthesis, Structure and Dynamics. A Conference on Crystal Engineering”, 11-14 December 2012 in Orange County, Coorg, Karnataka.

CrystEngComm Symposium: Pharmaceutical Polymorphism, November 2011 in the Chemistry Centre, London, UK.

International Conference on the Chemistry of the Organic Solid State (ICCOSS XX), June 2011 in Bangalore.

Poster presented on CGOM9, August 2009 in Singapore.

Poster presented on 38th National Seminar on Crystallography, February 2009 in Mysore.

Indo-US workshop on Pharmaceutical cocrystals and polymorphs, February 2009 in Mysore.

Poster presented on 37th National Seminar on Crystallography, February 2008 in Kolkata.