Conferences Attended:

1. 3^rd International Congress on Industrial and Applied Mathematics, Hamburg, July 3-7, 1995.

2. National Seminar on Advances in Mathematical, Statistical and Computational Methods in Science and Technology, Indian School of Mines, Dhanbad, Jharkhand, November 29-30, 2001.

3. WSEAS International Conference on Theoretical and Applied Mathematics, Miedzyzdroje, Poland, September 1-5, 2002.

4. HYDRO2002: Conference on Hydraulics, Water Resources and Ocean Engineering, IIT Bombay. Mumbai, December 16-17, 2002.

5. 30^th Conference on Fluid Mechanics and Fluid Power, National Institute of Technology Karnataka, Surathkal, December 11-13, 2003.

6. 5^th International Conference on Special Functions and their Applications, Lucknow, February 8-10, 2004 organized by the Society for Special Functions and their Applications.

7. International Conference on Mathematical Fluid Dynamics, organized by University of Hyderabad, Hyderabad, December 2-7, 2004.

8. 70^th Annual Conference of Indian Mathematical Society, Jodhpur, December 26-29, 2004 organized by Jai Narayan Vyas University, Jodhpur, India.

9. Regional Seminar on Mathematics, Dibrugarh, January 10, 2005, organized by Dibrugarh University, Dibrugarh, Assam, India.

10. International Conference on Environmental Fluid Mechanics, March 3-5, 2005 organized by Indian Institute of Technology Guwahati, India.

11. SANUM2006: Annual Congress of South African Society for Numerical and Applied Mathematics, University of Stellenbosch, Stellenbosch, South Africa, April 3-5, 2006.

12. International Conference on Applications of Fluid Mechanics in Industry and Environment, Indian Statistical Institute, Kolkata, August 28-31, 2006.

13. GLADE2008, University of Auckland, Auckland, New Zealand, July 14-18, 2008.

14. International Colloquium on Perspectives in Fundamental Research, Tata Institute of Fundamental Research, Mumbai, March 2-6, 2010.

15. 8^th AIMS International Conference on Dynamical Systems, Differential Equations and Applications, Dresden University of Technology, Germany, May 25-28, 2010.

16. International Congress of Mathematicians, Hyderabad, August 19-27, 2010.

17. International Conference on Mathematical Sciences 2 (ICMS2), Universiti Kebaangsan Malaysia, Kuala Lumpur, Malaysia, November 30-December 2, 2010.

18. 76^th Annual Conference of Indian Mathematical Society, SV National Institute of Technology, Surat, India, December 27-30, 2010.

19. 7th East Asia SIAM Conference, Waseda University, Kitakyushu Campus, Fukuoka, Japan, June 27-29, 2011.

20. North East Regional Conference on Mathematics Education, IIT Guwahati, November 25-26, 2011.

21. National Seminar on Recent Developments in Natural Sciences, DKD College, Dergaon, Assam, January 20-21, 2012. (as Chairperson)

22. National Seminar on Mathematics: the Need of the Hour, Shillong College, Shillong, Meghalaya, December 7-8, 2012.

23. National Conference on Frontiers in Analysis and Differential Equations, Bharathidasan University, Tiruchirappalli, December 19-20, 2012.

24. National Seminar on Contemporary Issues in Mathematics and Statistics,  Gargaon College, Sivasagar, Assam, March 22-23, 2013.

25. National Seminar on Recent Trends in Mathematics and Applications, Digboi College, Assam, October 7-8, 2013.

26. 10th Annual Conference of East Asia SIAM, Pattaya, Thailand, June 23-25, 2014.

27. 10th American Institute of Mathematical Sciences Conference on Dynamical Systems, Differential Equations and Applications, Madrid, Spain, July 7-11, 2014.

28. 8th International Congress on Industrial and Applied Mathematics (ICIAM), Beijing, China, August 10-14, 2015.

29. National Seminar on Recent Trends of Mathematics and its Applications, Rajiv Gandhi University, Rono Hills, Arunachal Pradesh, November 6-7, 20015.

30. International Conference on Vibration Problems, IIT Guwahati, Guwahati, December 14-17, 2015.

31. 60th Annual Congress of Indian Society of Theoretical and Applied Mechanics, MNIT Jaipur, December 16-19, 2015.

32. Recent Developments in Numerical Techniques and Applications, NIT Patna, Bihar, April 7-8, 2016.

33. International Conference on Applied Mathematics, City University of Hong Kong, May 30-June 2, 2016.

34. The 12th AIMS Conference on Dynamical Systems, Differential Equations and Applications, National Taiwan University, Taipei, Taiwan, July 5-9, 2018.

35. Equadiff2019, Leiden University, Leiden, The Netherlands, July 8-12, 2019.

36. International Conference on Numerical Analysis, Differential Equations and Applications, Siksha O Anusandhan University, Bhubaneswar, Odissa,  India, July 20-22, 2019.

37. International Conference on Mathematical Applications in Engineering, International Islamic University Malaysia (held at Putrajaya International Convention Centre), Putrajaya-Kuala Lumpur, Malaysia,  October 30-31, 2019.

38. National Conference on Modelling, Analysis and Simulation, IIT (ISM) Dhanbad, December 16-18, 2019.

39. International Conference on Advances in Mathematics, Science and Technology (online), Rajiv Gandhi University, Rono Hills, Arunachal Pradesh, September 1-3, 2020.

40. International Conference on Advances in Differential Equations and Numerical Analysis (ADENA2020) (online) , IIT Guwahati, October 12-15, 2020.

41. 65th Congress of Indian Society of Theoretical and Applied Mechanics (ISTAM) - an International Conference (online), GITAM, Hyderabad, December 9-11, 2020.

42. 35th Ramanujan Mathematical Society Annual Conference, Central University of Rajasthan, December 27-30, 2020.

43. Equadiff15, Conference on Differential Equations and Their Applications, Masaryk University, Brno, Czech Republic, July 11-15, 2022.

44. 67th Annual Congress of Indian Society of Theoretical and Applied Mathematics, IIT Mandi, India, December 14-16, 2022.

45. 88th Annual Congress of Indian Mathematical Society, Birla Institute of Technology Mesra, Ranchi, India, December 27-30, 2022.

46. International Energy and Ocean Engineering Workshop and 45th Ocean Engineering Conference, National Taiwan Ocean University, Keelung, Taiwan, October 5-6, 2023.

47. National Conference on Mathematics and Its Applications - II, Cotton University, Guwahati, November 7-8, 2023.

48. National Conference on Mathematics Education, North East Regional Institute of Education (NCERT), Shillong, Meghalaya, India, December 20-22, 2023.

49. Equadiff 2024 (Conference on Differential Equations and Their Applications), Karlstad University, Karlstad, Sweden, June 10-14, 2024.

50. Modeling, Analysis and Simulation 2024, Indian Institute of Technology (ISM) Dhanbad, Dhanbad, Jharkhand, India, June 28-30, 2024.

51. International Conference on Recent Advances in Fluid Mechanics and Nanoelectronics, Manipal University Jaipur, Rajasthan, India, July10-12, 2024.