1. Organized Expert Lecture on ”A Brief Introduction to Cryptology and Secret Sharing” by Professor Bimal Roy, Director, ISI Kolkata on 09.02.2012. 

2. Organized Expert Lecture on ”Identity-based Cryptography” by Dr. M. L. Das, Associate Professor, DA-IICT, Gandhinagar on 11.05.2012.  

3. Organized Expert Lecture on ”Satellite Data for Weather Prediction: A Mathematical Challenge” by Dr. P. C. Joshi, Brahamaprakash Scientist, ISRO, Ahmedabad on 12.06.2012. 

4. Organized Expert Lecture on ”SPSS Software and Its Applications” by Gaurav Kumar, Binary Semantics Ltd., Bangalore on 16.02.2015.  

5. Organized Expert Lecture on ”Data Assimilation” by Dr. P. K. Pal, Outstanding Scientist (Retired), Space Applications Centre (ISRO), Ahmedabad on 05.05.2016.  

6. Organized Expert Lecture on ”Data Assimilation in Meso-scale Models” by Dr. Rakesh V., Scientist, CSIR Fourth Paradigm Institute (CSIR-4PI), Bengaluru on 27.07.2016. 

7. Organized Expert Lecture on ”Uniformly Convergent Numerical Schemes for Singular Perturbation Problems on Layer-Adapted Meshes” by Prof. S. Natesan, IIT Guwahati on 23.09.2016. 

8. Organized Expert Lecture on ”Nantechnology: Small and Beautiful” by Prof. S. Kulkarni, IISER, Pune on 24.09.2016. 

9. Organized Expert Lecture on ”Option Pricing and Credit Risk” by Prof. M. K. Ghosh, IISc. Bangalore, on 22.11.2016. 

10. Organized Expert Lecture on ”Electron and Ion (Mass) Spectroscopy on some advanced functional materials” by Dr. M. K. Dalai, Scientist, CSIR-National Physical Laboratory, New Delhi on 12.05.2017. 

11. Organized Expert Lecture on ”Euler Constant” by Prof. Michel Waldschmidt, Emeritus Professor, Universit Pierre et Marie Curie (Paris 6), France on 01.12.2017. 

12. Organized Expert Lecture on ”Power Series” by Prof. S. Ponnusamy, Professor, Department of Mathematics, IIT Madras, Chennai on 02.02.2018. 

13. Organized Expert Lecture on "Bessel Wavelet Transform" by Prof. S. K. Upadhyay, Professor, Department of Mathematical Sciences, IIT BHU, Varanasi on 22.02.2018.

14. Organized Expert Lecture on "Measure Theor" by Prof. Inder K. Rana, Emeritus Professor, IIT Bombay, Mumbai on 18.03.2018.

15. Organized Expert Lecture on "Nobel Prize in Physics 2017" by Dr. Pruthul Desai, Principal, P.T. Science College, Surat on 18.03.2018 as a part of PRAKRITI 2018.

16. Organized Expert Lecture on "Deterministic ODE Models in Population Ecology" by Prof. Bindhyachal Rai, Professor (retired) & Former Head, Department of Mathematics, University of Allahabad, Allahabad on 11.10.2018.

17.Organized Expert Lecture on "A lucid introduction to error correcting codes" by Prof. Michel Waldschmidt, Sorbonne University, Paris, France on 14.12.2018.(through A-VIEW from K. J. Somaiya College of Engineering, Mumbai)

18. Organized Expert Lecture on "Routh-Romanovski Orthogonal Polynomials" by Dr. A. Swaminathan, Associate Professor, Department of Mathematics, I.I.T. Roorkee on 22.03.2019.

19. Organized Expert Lecture on "Convex optimization and Support vector machines" by Dr. S. K. Gupta, Associate Professor, Department of Mathematics, I.I.T. Roorkee on 30.03.2019.

20. Organized Expert Lecture on "Some Heuristic Methods and their Applications in NP hard problems" by Prof. Manoranjan Maiti, Professor (Retired), Department of Applied Mathematics with Oceanology & Computer Programming, Vidyasagar University, Midnapore on 01.04.2019.

21. Organized Interactive Session on "Scope and Opportunities to study at GSU, USA" by Mr. Krishna Prasanth, Governors State University, USA on 01.05.2019.

22. Organized Expert Lecture on "Ramanujan: More than a Century of Inspiration" by Prof. Bruce C. Berndt, Professor Emeritus, Department of Mathematics, University of Illinois at Urbana-Champaign, USA on 14.03.2022, on the occasion of International Day of Mathematics.

23. Organized Expert Lecture on "Robotic-based Automation" by Prof. Laxmidhar Behera, Director, IIT Mandi on 30.01.2023 at 10:30 am.

24. Faculty Coordinator of the expert lecture on "Articial Intelligence and Data Science: Current Trends and Future Challenges" by Prof. Ujjwal Maulik, Department of Computer Science and Engineering, Jadavpur University, Kolkata, on 27.03.2023 at 10:30 am.

25. Faculty Coordinator of the "Interaction with Faculties and Students of SVNIT" by Prof. Sanghamitra Bandyopadhyay, Director, ISI Kolkata on 27.03.2023 at 11:30 am.

26. Faculty Coordinator of the ”Interaction with Faculties of Mathematics Department of SVNIT” by Dr. Jaya Mukherjee, Member Secretary, National Board for Higher Mathematics(NBHM), DAE on 30.03.2024 at 12:30 pm.

27. Faculty Coordinator of the ”Interaction Session with MANTRA team for internship of final year students of SVNIT at MANTRA” by Dr. Pankaj Gandhi, Director, MANTRA (The Man Made Textile Research Association), Suart on 04.04.2024 from 12:30 pm to 01:30 pm.

28. Faculty Coordinator of the Expert Session on "U.S. Higher Education and the Student Visa" by Dr. Deborah Rosario, Senior EducationUSA Adviser, United States-India Educational Foundation, Mumbai on 17.10.2024 from 11:30 am to 12:30 pm.

29. Organizer of the Indian Mathematical Society sponsored lecture entitled "Understanding Errors and Sensitivity in Scientific Computing ", delivered by Prof. Jitendra Kumar, Department of Mathematics, IIT Ropar on 08.11.2024.

30. Faculty Coordinator of the Interactive Session with Faculties and Students of SVNIT by Prof. Sanghamitra Bandyopadhyay, Director, Indian Statistical Institute, Kolkata, a Padma Shri awardee on 28.02.2025.

31. Faculty Coordinator of the Interactive Session with Faculties and Students of SVNIT by Prof. Ujjwal Maulik, Department of Computer Science and Engineering, Jadavpur University, Kolkata on 28.02.2025.

Delivered - 112

1. "On Numerical Weather Prediction" at AICTE sponsored SDP on Application of Mathematical Sciences & Soft Computing organized by ASHD, SVNIT, Surat on 09-12-2008.

2. "Stochastic Processes" at AICTE sponsored STTP on Machine Learning and Soft Computing organized by COED, SVNIT, Surat on 31.12.2008.

3. "Decomposition of Matrix" at AICTE sponsored STTP on Machine Learning and Soft Computing organized by COED, SVNIT, Surat on 31.12.2008.

4. "On Numerical Weather Prediction-A Case study" at AICTE sponsored STTP on Recent Scientic and Technological Advances in Physical Sciences organized by ASHD, SVNIT, Surat on 31.12.2008.

5. "Introduction to MATLAB" at AICTE Sponsored STTP on Advances in Condensed Matter Physics organized by Department of Applied Physics, SVNIT, Surat during August 31- September 4, 2009.

6. "MATLAB Basics" at AICTE sponsored STTP on Mathematical Modeling and Simulation organized by AMHD, SVNIT during December 21-25, 2009.

7. Delivered invited lecture on "Linear Programming Problem Solution by Simplex Method" at PG Section of Transportation Engineering and Planning of CED, SVNIT.

8-14. Delivered Seven invited lectures on Different topics of Special Functions and Integral Transforms at TEQIP sponsored STTP on "Mathematical Methods for Physical Sciences and Engineering (MMPSE 2013)" during May 6-10, 2013.

15-23. Delivered Nine invited lectures on Different topics of Operations Research at TEQIP sponsored STTP "Optimization Techniques for Scientists and Engineers (OTSE 2013)" during June 17-21, 2013.

24. Delivered an invited talk in Graduate Students Number Theory Seminar (GSNTS) at University of Illinois at Urbana-Champaign, USA on April 03, 2014.

25. Delivered an invited talk in the Special Session on Complex Function Theory and Special Function at Spring 2014 Central Sectional Meeting of the American Mathematical Society held at Texas Tech University, Lubbock, Texas, USA during April 11-13, 2014.

26. Delivered an invited talk at 2nd International Conference on Recent Trends in Mathematics and Its Applications(ICRTMA) at Vidyasagar University, Midnapore on March 19, 2015.

27-37. Delivered Eleven invited lectures at TEQIP sponsored Two Week Short Term Course (STC) on "Mathematical Methods for Scientists and Engineers (MMSE 2015)" during 29.06.2015 to 10.07.2015 at SVNIT, Surat.

38. Delivered an invited talk in the International Conference on Special Functions and Their Applications (ICSFA 2015) held at Amity University, Noida.

39. Delivered an invited talk in the UGC sponsored National Seminar on "Recent Trends in Biomathematical Modeling under uncertain Environment" at Mugberia Gangadhar Mahavidyalaya, West Bengal.

40. Delivered an expert lecture at One Day State Level Seminar on "Optimization Techniques for Engineers and Researchers" at Vadodara Institute of Engineering on 11.12.2015.

41-42. Delivered Two expert lectures at One Week Short Term Training Programme on "Computational Techniques for Differential Equations (CTDE 2016)" during May 2-6, 2016 under TEQIP-II at SVNIT, Surat.

43. Delivered an invited talk in the International Conference on Special Functions and Their Applications (ICSFA 2016) held at Jamia Millia Islamia, New Delhi on 10.09.2016.

44-45. Delivered Two expert lectures at One Week Short Term Training Programme on "Advanced Engineering Optimization through Modern Computing Techniques" held at Smt. S. R. Patel Engineering College, Unjha, Mehsana, Gujarat during December 05-09, 2016, sponsored by GUJCOST. (Lectures delivered on 06.12.2016)

46. Delivered a lecture about SVNIT and Mathematics Department at Tolani College of Arts and Sciences, Adipur, Kutch, Gujarat on 16.12.2016.

47. Delivered an expert lecture at TEQIP-II sponsored Short Term Training Programme on "Role of Physics in Technology Development (RPTD-2017)" during January 2-6, 2017 held at SVNIT on 03.01.2017.

48. Delivered an invited talk on "Applications of Linear Programming Problems and Computations through Lingo Software" at Marwadi University, Rajkot, Gujarat on 11.03.2017.

49-56. Delivered Eight expert lectures at TEQIP-II sponsored Short Term Training Programme on "Transform Methods in Science and Engineering (TMSE 2017)" during March 6-10, 2017, held at SVNIT.

57. Delivered an invited talk on "Data Assimilation Techniques in Numerical Weather Prediction" at Haldia Institute of Technology, West Bengal on 17.03.2017.

58. Delivered an invited talk in the International Conference on Special Functions and Their Applications (ICSFA 2017) organized by Government College of Engineering, Bikaner, Rajasthan during November 2 - 4, 2017.

59. Delivered an invited talk in the 83rd Annual Conference of Indian Mathematical Society-An International Meet, held at Sai Venkateswara University, Tirupati during December 12-15, 2017.

60. Delivered an invited talk on "New trends in transforms and Applications in Weather Forecast" at Mukesh Patel School of Technology, Management and Engineering, Mumbai on 20.03.2018.

61. Delivered an invited talk in the Ramanujan Memorial Lecture Series-2 on "Bessel Function Series in Connection with Ramanujan Mathematics" at Mugberia Gangadhar Mahavidyalaya, West Bengal, on 26.03.2018.

62. Delivered an invited talk on "Research Scope and Opportunities in Mathematics" at Mugberia Gangadhar Mahavidyalaya, West Bengal, on 26.03.2018.

63. Delivered an invited talk on "Geometric and Asymptotic properties of Extended Hypergeometric Functions" at International Conference on Special Functions & Applications (ICSFA-2018), held at Amal Jyothi Engineering College, Kanjirapalli, Kottayam, Kerala during November 22-24, 2018.

64. Delivered an invited talk on "Mathematics of Numerical Weather Prediction" at Govt. M. H. College of Home Science & Science for Women, Jabalpur in the National Seminar on Parallel Computing & Optimization Techniques during February 23-24, 2019.

65. Delivered an invited talk on "Optimization Technique for Public Bicycle Sharing System" at Govt. M. H. College of Home Science & Science for Women, Jabalpur in the National Seminar on Parallel Computing & Optimization Techniques during February 23-24, 2019.

66. Delivered an invited talk entitled "A Study on Geometrical Signicance of Fractional Calculus" in the 84th Annual Conference of Indian Mathematical Society-An International Meet, held at Shri Mata Vaishno Devi University, Jammu during November 27-30, 2018.

67. Delivered an invited talk entitled "An Optimization approach to study Bicycle Sharing System for Surat City" at 2nd International Conference on Information Technology and Applied Mathematics (ICITAM 2019) held at Haldia Institute of Technology, West Bengal, during March 07-09, 2019.

68. Delivered an invited talk entitled "Generalizations of Sheffer polynomials and their q-analogue" at International Conference on Number theory and Graph Theory (ICNG-2019) held at University of Mysore, Mysuru, Karnataka, during June 27-29, 2019.

69. Delivered an invited talk entitled "Some Studies on extended Wright type hypergeometric functions" at International Conference on Special Functions and Their Applications (ICSFA 2019) organized by Government College of Engineering, Bikaner, Rajasthan during October 21-23, 2019.

70. Delivered an invited talk entitled "Optimization Techniques: Classical and Advanced" at Short Term Course on Nascent Research Methods/Challenges and Various Analytical Tools and Techniques organized at Madan Mohan Malaviya University of Technology, Gorakhpur under TEQIP-III during 24th June to 29th June 2020. (Talk delivered online)

71. Delivered an Invited Talk at National Webinar on "Recent Advances in Mathematical Sciences" at Egra Sarada Shashi Bhusan College, Egra, WB on 16.08.2020.

72. Delivered an Invited Talk at 26th International Conference (online) of International Academy of Physical Sciences (CONIAPS XXVI) on Advances in Algebra and Analysis" held at Marwadi University, Rajkot, Gujarat, India during December 18-20, 2020.

73-74. Delivered Two Invited Talks on National Mathematics Day (22.12.2020) to Celebrate 133rd Birth Anniversary of Srinivasan Ramanujan at Vidyasagar University, West Bengal.

75-77. Delivered Three expert lectures at One Week Online Short Term Training Programme (STTP) on "Fractional Calculus: Foundations to Frontiers (FCFF 2020)" during December 28, 2020 - January 01, 2021, held at SVNIT.

78-86. Delivered Nine expert lectures at "One Week Online Workshop on Optimization: Theory, Practice & Simulation (OTPS 2021)" during February 08-12, 2021, held at SVNIT.

87. Delivered an Invited Talk at TEQIP-III RTU (ATU) Sponsored One Week Workshop on "Applications of Fractional Calculus in Engineering & Technology" during March 01-05, 2021, held at Anand International College of Engineering, Jaipur.

88. Delivered an Invited Talk at DST-GUJCOST sponsored Two Days National Workshop on "Application of Numerical Methods for Medical Science & Engineering" during August 24-25, 2021, held at Swarnim Startup & Innovation University, Gandhinagar, Gujarat.

89-91. Delivered Three expert lectures at OneWeek Online Short Term Training Programme (STTP) on "Mathematical Tools and Techniques for Scientists & Engineers (MTTSE 2021)" during December 06-10, 2021 held at SVNIT.

92. Delivered an Invited Talk at Department of Applied Mathematics with Oceanology & Computer Programming, Vidyasagar University, Midnapore as an "Interaction and Motivational Talk to the PG Students" on 25.03.2022.

93. Delivered an Invited Talk on 25.03.2022 "On Extended Wright type Hypergeometric Functions and their Applications" at International Webinar on Special functions and their Applications (IWSFA 2022) organized by Department of Mathematics, University of Kerala, India during March 21-25, 2022.

94. Delivered an invited talk entitled "Bessel Function and connection with Ramanujans Mathematics" at International Training Workshop on Computing Special Functions and Their Applications organized by MathTech Thinking Foundation in collaboration with SVNIT, Surat and others during April 5-7, 2022.

95. Delivered an invited talk entitled "Computation of Bessel and Error Functions" at International Training Workshop on Computing Special Functions and Their Applications organized by MathTech Thinking Foundation in collaboration with SVNIT, Surat and others during April 5-7, 2022.

96. Delivered an invited talk on 08.06.2022 entitled "Application of Community Land Surface Model (CLM) for improving Rice Crop Dynamics"at International Conference on Applied Mathematics ICAM-2022), held at Vidyasagar University, Midnapore, during June 08-09, 2022.

97. Delivered an invited talk on 09.01.2023 entitled "Techniques of Operations Research: An Overview" at 5-Day International Workshop on Optimization Techniques in Industrial and Engineering Applications (IWOTIEA-2023), on 09.01.2023, Organized by Department of Mathematics, School of Advanced Sciences, VIT-AP University, Andhra Pradesh, India during January 6-10, 2023.

98. Delivered an invited talk on 09.01.2023 entitled "Optimization Techniques for Public Bicycle Sharing System: A case study for Surat city" at 5-Day International Workshop on Optimization Techniques in Industrial and Engineering Applications (IWOTIEA-2023), on 09.01.2023, Organized by Department of Mathematics, School of Advanced Sciences, VIT-AP University, Andhra Pradesh, India during January 6-10, 2023.

99. Delivered a Motivational and Interactive Talk for Higher Secondary studentsat Pataspur Haro-Charan Vidyapith on 25.03.2023 as per Social Science Responsibility.

100. Delivered an invited talk on 27.05.2023 entitled "Inequalities Associated with Special Functions" at International Training / Workshop on Computing Special Functions and Their Applications organized by MathTech Thinking Foundation in collaboration with SVNIT, Surat and other Institutes during May 24-30, 2023.

101. Delivered an invited talk on 28.06.2024 entitled "Multi-Objective Optimization Problem: A case study to analyse the Productivity in Cultivation of Major Rabi Crops in India" at International Conference on Applied Mathematics (ICAM-2024) Organized by Department of Applied Mathematics, Vidyasagar University, Paschim Midnapore-721102, West Bengal, India during June 27-28, 2024.

102. Delivered an invited talk on "Multi-Objective Optimization Problem: Basics and Applications " at Special  Seminar  of Midnapore College, Midnapore on August 07, 2024.  

103. Delivered an invited talk on "Approximate Analytical Methods for Soliton solution of damped KdV equation in unmagnetised superthermal plasma " at International Conference on Non-linear Analysis and Scientific Computing (ICNASC-24) held at Vignan's Foundation for Science, Technology, and Research (Deemed to be University), Guntur, Andhra Pradesh, India during September 26–28, 2024.   

104.. Delivered an invited talk entitled "Interdisciplinary Project Work and Applications: Use of Optimization Techniques” on 15.12.2024 at "One-Week Workshop on Interdisciplinary Computing in Basic and Applied Sciences” organized by MathTech Thinking Foundation in collaboration with SVNIT, Surat and Others during December 09-15, 2024.

105. Delivered an invited talk entitled "Interdisciplinary Project Work and Applications: Use of Data Assimilation” on 15.12.2024 at "One-Week Workshop on Interdisciplinary Computing in Basic and Applied Sciences” organized by MathTech Thinking Foundation in collaboration with SVNIT, Surat and others during December 09-15, 2024.

106. Delivered an invited talk entitled "Inequalities associated with Special Functions" on 23.01.2025 at International Conference on Algebra, Analysis, Dynamics and their Applications (ICAADA 2025) held at Midnapore College, West Bengal, during January 22-25, 2025.

107.  Delivered an invited talk (8th module Academic Lecture) entitled "Application of Transform techniques to solve initial and boundary value problems" on 11.03.2025 organized by Department of Mathematics, School of Advance Sciences, VIT University, Vellore, TN.

108.  Delivered an Expert Lecture entitled "Probability, Statistics & Data Assimilation: Some Case Studies" on 07.04.2025, organized by Department of Mathematics, School of Advance Sciences, VIT University, Vellore, TN.

109. Delivered an invited talk on 08.04.2025 (02:00 pm to 04:00 pm) entitled "Multi-Objective Optimization Problem: Some Applications" at International Workshop on Theory and Applications of Optimization in Machine Learning", organized by Department of Mathematics, School of Advanced Sciences, VIT-AP University, Andhra Pradesh, India during April 4-8, 2025.

110. Delivered an Expert Lecture entitled "Overview of Optimization Techniques and Applications" on 09.04.2025 (11:30 am to 01:00 pm), organized by Department of Mathematics, School of Advance Sciences, VIT University, Vellore, TN.

111.  Delivered an Invited Talk entitled "Application of Transform Techniques to solve Initial and Boundary Value Problems (IVP & BVP)" on 05.05.2025 (03:30 pm to 05:00 pm), organized by Dr. S & S. S. Ghandhy Government Engineering College, Surat.

112.  Delivered an an Invited Talk entitled "Data Assimilation: Recent Advances and Applications" on 22.05.2025 at Two day international webinar on " Recent Advances and Emerging Applications of Mathematics " organized by Department of Mathematics, Ghatal Rabindra Satabarsiki Mahavidyalaya, West Bengal.