32. Hybrid Halide Perovskite (HyPe)-2023, Indian Association for the Cultivation of Science, Kolkata (21-23 Dec 2023, Invited Talk).

31. International Meeting on Energy Storage Devices (IMESD 2023) and Industry-Academia Conclave, Indian Institute of Technology Roorkee (07-10 Dec 2023, Invited Talk).

30. Perovskite Society of India Meet International Conferences (PSIM)-2023, Indian Institute of Technology Roorkee (01-03 March 2023, Invited Talk).

29. International Union of Materials Research Society (IUMRS), International Conference in Asia-2022, Indian Institute of Technology Jodhpur (19th-23rd Dec, Invited Talk).

28. ADVANCED ENERGY MATERIALS & DEVICES (AEMD)-2022 Workshop, CSIR-Central Glass & Ceramic Research Institute Kolkata (03 Mar 2022, Invited Talk).

27. MRSI-AGM Conclave 2021, Indian Institute of Technology Madras,  Theme: Nitride Electronics (23 December 2021, Session Chair).

26. 9th 2-Week Online Refresher Course in Basic Science (Interdisciplinary), Human Resource Development Centre, Jamia Millia Islamia, New Delhi (12 October 2021, Resource Person).  

25. CUTS Roundtable Conference-I on "Accelerating Electric Vehicle Adoption in Rajasthan" (01 Oct 2021, Invited Talk and Panel Discussion).

24. The 2nd International Conference on Graphene and Novel Nanomaterials (GNN 2020), Beijing, China. (01-04 Nov 2020, Invited Talk).

23. Online Symposium (Nano materials) - Russian-Indian Network of Institution of Higher Education (RIN). (03-05 Nov 2020, Invited Talk).

22. International School on Hybrid Organic and Perovskite Photovoltaics (HOPE-PV 2019), Skolkovo Institute of Science and Technology, Moscow-Russia. (21-23rd Oct 2019, Invited Talk).

21. UKIERI Seminar on “Photo-Rechargeable Li-ion Energy Storage Systems”, Institute for Manufacturing (IfM), University of Cambridge, UK. (02 July 2019, Invited Talk).

20. International Conference on Advanced Materials- ICAM-2019, Centre for Nanoscience and Nanotechnology at Jamia Millia Islamia (Central University), New Delhi. (March 06-07, 2019, Participants- 650+, Role: Conference Secretary). 

19. UKIERI Workshop on “Photo-Rechargeable Perovskite Batteries for future mobility” Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia (Central University), New Delhi. (March 08, 2019, Participants- 50, Role: Convener).

18. International Winter School in Frontiers of Materials Science -2018, JNCASR, Bangalore, India (03-07 Dec 2018, Poster and Oral Presentation).

17. Newton-Bhabha (Indo-UK) Workshop on “Translating Clean Energy Research to Rural India”, IISER Pune, India. (04-08 Sep, 2017, Discussion and Oral Presentation).

16. Materials Research Society (MRS), Spring Meeting, Phoenix, Arizona, USA. (16-21 April, 2017, Poster presentation).

15. 7th UK - Japan Symposium on Fundamental Research Advances in Carbon Nanomaterials, Royal Society of Chemistry (RSC), London, UK. (13 June 2016, Poster presentation).

14. Winton Symposium on "Solar Energies", Cavendish Laboratory, University of Cambridge, UK. (03 Nov 2016).

13. Winton Symposium on "Green Computing", Cavendish Laboratory, University of Cambridge, UK. (28 Sep 2015).

12. ICOOPMA-2014 (Sixth International Conference on Optical, Optoelectronic and Photonic Materials and Applications), University of Leeds, UK. (27 July-1 Aug, 2014, Oral presentation).

11. IUMRS-ICA 2013, Indian Institute of Science, Bangalore, India. (16-20 Dec, 2013, Poster presentation).

10. Focused discussion meeting on Metamaterials and Photonic Nanostructures, Indian Institute of Technology, Kanpur, India. (16- 17 Aug, 2013, Poster presentation).

09. Third International Conference on Multifunctional, Hybrid and Nanomaterials, Sorrento, Italy. (3-7 March-2013, Oral presentation).  

08. The International Conference on Fiber Optics and Photonics-2012, IIT Madras, Chennai, India. (9-12 Dec-2012, Poster presentation).

07. CFN-KIT Summer School on Nanophotonics 2012, Bad Herrenalb, Karlsruhe, Germany. (10-13 Sep-2012, Poster presentation).

06. 16th International workshop on Physics of Semiconductor Devices, IWPSD 2011, IIT Kanpur, India. (19-22 Dec-2011, Poster presentation).

05. 2nd International conference on Advanced Nanomaterials and Nanotechnology, ICANN 2011, IIT Guwahati, Guwahati, India. (8-10 Dec-2011, Poster presentation).

04. 36th OSI Symposium on Frontiers in Optics and Photonics (FOP11) 2011, IIT Delhi, India. (3-5 Dec-2011).

03. Organized and participated in workshop on Recent Trends in Nanophotonics 2011, IIT Delhi, India. (30 Sep-1 Oct-2011, Poster presentation).

02. Nanotechnology Business: The giant in Dwarfs 2009, Organized by Confederation of Indian Industry (CII) at Hotel Taj, New Delhi, India.

01. National Workshop on Oxide Materials 2009, Organized by Aligarh Muslim University in collaboration with I.U.A.C, New Delhi, India.