Honors and awards:
Some of the honors and awards that I have received so far ( list is long, so many things are skipped).
2025: Honorary Visiting Scientist, Center for Soft Computing Research, Indian Statistical Institute- Kolkata (Joined on 19th November, 2025)
2025: Elected as a Member of Indian National Young Academy of Science (INYAS)
2023: Best paper awardee, ICTDsC-2023, Siliguri Institute of Technology, West Bengal, India.
2017: Considered as Post Doctoral Fellow at University of California, Berkeley by Prof. Lotfi A. Zadeh, the founder of fuzzy set theory and fuzzy logic (but I could not avail this opportunity due to sudden demise of Prof. Zadeh).
2017: Selected for Post Doc Selection Process for IIAS, Shimla, (but I decided to join service at that time as an assistant professor at D.R. College, Golaghat, Assam, India due to financial obligations and other constraints).
2014: Travel grant by National Board of Higher Mathematics, Govt. of India (grant no: NBHM/TG.161/2014/882).
2014: Invited as Visiting Researcher, Fields Institute of Mathematical Research, Canada with their financial supports (but I could not avail it due to non-availability of Passport).
2014: Invited as Speaker to deliver a talk in a reputed International Conference of Topology at CBNU, South Korea with their financial supports (but I could not avail it due to non-availability of Passport).
Invited talks delivered as resource persons:
2025
Invited Speaker, International Conference On Frontiers of Engineering in Healthcare, Indian Institute of Technology-Gandhinagar and Gujrat Technical University (Jointly ), 10-12th December, 2025.
Title: Scopes of attribute-based logic for technologies related to healthcare
Invited panelist, INYAS Mid-Year Meeting and Technical Symposium 2025, VIT, Vellore, from September 18th to 20th, 2025.
Title: Artificial intelligence integrated mathematical modelling in sustainable defence and strategic innovation.
24th Annual Meet of Calcutta Logic Circle, 2025 On Logic and its Application, Ramkrishna Mission Residential College, Narendrapur, West Bengal, India, 30th-31st August, 2025.
Title: Big data analytics need big theories of logic.
2024
23rd Annual Meet of Calcutta Logic Circle, 2024 On Logic and its Application, Ramkrishna Mission Residential College, Narendrapur, West Bengal, India, 9th-10th November, 2024.
Title: Correct structures of soft sets, fuzzy soft sets, and related concepts in logic.
( https://www.youtube.com/watch?v=QQYbfHZkGnI&t=6604s) [Please check my talk at the second position in the given link]
Webinar, Basugaon College, Assam, India, 24th June, 2024.
Title: Mathematics: Ancient history and present-day applications in some interdisciplinary subjects
One Day National Level Seminar, Goalpara College, Assam, India, 17th February, 2024.
Title: Limits of human and artificial intelligence.
Games at Mumbai 2024 Combinatorial Games Workshop, Indian Institute of Technology-Bombay, India, 21st-25th January, 2024.
Title: Scopes of games in bitopological dynamical systems.
Refresher course on Mathematics and Computer Science, UGC Malaviya Mission Teacher Training Centre, University of North Bengal, West Bengal, India, 16th January, 2024.
Title: Bitopological dynamical systems: An introduction along with interdisciplinary scopes.
2023
Department of Mathematics, Pragjyotish College, Guwahati-781009, Assam, India, 09th September, 2023.
Title: Career with mathematics.
2022
Invited talk at Assam Don Bosco University, Assam, 27th October, 2022.
Title: Bitopological Dynamical Systems and Child Birth From Zygote.
International Conference on Analysis and Applied Mathematics (ICAAM-2022), Ayya Nadar Janaki Ammal College, Shivkasi, Tamilnadu, India from 26-28th April, 2022.
Title: Big Data Analytics and Topological Cryptography: A paradigm for the future.
Fourth Two Day International Conference on New Trends in Mathematical Modelling With Applications (ICNTMMA-2022), Sri Vidya Mandir Arts and Science College, Tamilnadu, India, 07-08th April, 2022.
Title: Bitopological Dynamical System.
2021
International Conference on New Trends in Fuzzy Logic and its applications (ICNTFLA-2021), Sri Vidya Mandir
Arts and Science College, Tamilnadu, India, 29-30th January,2021.
Title: Statistical Concepts of Intuitionistic Fuzzy Soft Theory via utility.
Online Series of Lectures on Topology, organized by Department of Mathematics, Jawaharlal Nehru College, Boko, Assam, India from 05th to 11th August, 2021.
4 Days Faculty Development Programme on Challenges, Innovations and Opportunities in Mathematical Sciences, organized by IQAC & Centre for Research and Post Graduate Studies in Mathematics, Ayya Nadar Janaki Ammal College, Shivkasi, Tamilnadu, India from 22-25th September, 2021.
Title: Introduction to Bitopological Dynamical Systems.
One Day Seminar on NEP 2020: Technology Use & Integration in NEP, 2020, organized by Depts. of Mathematics, Philosophy, History & Economics in collaboration with IQAC, Pragjyotish College, Guwahati, Assam, India on 27th December, 2021.
Title: Technology use and integration in National Education Policy, 2020.
2020
International Webinar on Mathematical Applications in Human Cognition and Neuroscience", Assam Don Bosco University, Guwahati, Assam, India, 16th September, 2020.
Title: Dunbar Graphs and their future perspectives.
2019
Workshop on Basic Mathematics, The Assam Kaziranga University, Assam, 22-23rd July, 2019.
Title: I ______ Mathematics.
Chaired sessions:
24th Annual meeting of the Calcutta Logic Circle (CLC), 2025 on Logic and its applications, Ramkrishna Mission Residential College, West Bengal, India, 30th-31st August, 2025.
International Conference on Mathematics and Applications in Science, Technology and Society, Assam Don Bosco University, 09th-10th May, 2024.
Resource Person for RUSA 2.0 Approved Refresher Course on Mathematical Science and Its Applications,
organized by UGC-HRDC and Dept. of Mathematics, Gauhati University, Assam, India from 20th February to 06th March, 2023.
National Conference on Advances in Mathematical Sciences, Department of Mathematics, Gauhati University, 22-23rd December, 2022.
Resource Person for the 15th ID Refresher Course on ``Mathematics and Statistics" (Pure & Applied),
organized by UGC-HRDC and Dept. of Mathematics, Gauhati University, Assam, India from 24th January to
07th February, 2022.
Contributory talks:
International Conference on Role of Mathematics for the Development of Science and Society, 21st-22nd December, 2023, Tripura University, Tripura, India.
Title: Primal-proximity spaces.
International Webinar on Advances in Mathematical Sciences, 30-31st March, 2023, West Bengal State University,West Bengal, India.
Title: E-fibration embedding and some associated structures on orbifold chart.
International Conference on Data Science and Communication, 23-24th March, 2023, Siliguri
Institute of Technology, Siliguri,West Bengal, India.
Title: Upper bounds of worldwide infected cases due to Covid-19 from the perspective of bitopology.
International Virtual Conference on Recent Trends in Applied Mathematics, 07th October, 2022, Sri Ramkrishna Institute of Technology, Coimbatore, Tamilnadu, India.
Title: Full spinal cord regeneration, entropy and SCLCB.
International e-Conference on Rough Sets-Generalizations and Applications, 11-13th November, 2021, Fuzzy and Rough Sets Association, Agartala, Tripura, India.
Title: Some results on fuzzy paratopological group.
27th International Conference of International Academy of Physical Sciences (CONIAPS XXVII) on
Mathematical Modelling in Biological Sciences, 26-28th October, 2021, NIT-Silchar, Assam, India.
Title: Entropy of a pairwise continuous map in NWPC bitopological dynamical systems.
27th International Conference of International Academy of Physical Sciences (CONIAPS XXVII) on Fuzzy and Computational Mathematics, 26-28th October, 2021, NIT-Agartala, Tripura, India.
Title: Fuzzy paratopological group.
International Web Conference on Emerging Areas of Mathematics and Mathematical Sciences (IWCEAMMS-2020), 12-14th December, 2020, Calcutta Mathematical Society, Kolkata, India.
Title: On conjecture 2 of Nada and Zohny from the perspective of bitopological dynamical systems.
International Conference on Mathematical Analysis and Applications, 02-04th November, 2020, NIT-Jamshedpur, India.
Title: On entropy with respect to two topologies.
International Webinar on Mathematics and Application (IWMA-2020), 25-27th September, 2020, The University of Burdwan.
Title: Entropy based on two topologies.
International e-conference on Nonlinear Analysis and its application (e-ICNAA-2020), 27-29th July, 2020, Dayanand Science College, Latur, India.
Title: Notion of entropy under two topologies.
International Conference On Recent Advances in ,Mathematics and Its Applications, 16-18th July, 2019, Tripura University, India.
Title: A bitopology based secret information sharing algorithm.
Two days National Seminar on Statistics for People, Society and Economy, 22-23th Feb, 2019, Gauhati University, India.
Title: Soft computing based statistics with respect to utility theory.
National Conference On Mathematical Biology, 07-08th July, 2018, NIT-Patna, India.
Title: On fuzzy soft correlation measure with respect to attributes and utility.
UGC Sponsored One Day National Workshop On Some Aspects of Teaching-Learning & Evaluation Process in Semester System, 01st June, 2018, Debraj Roy College, India.
Title: Importance of inclusion of a compulsory course ``Soft Computing" in undergraduate level syllabus.
International Conference on Mathematics and its Applications, 15-17th February, 2018, University of Burdwan, India.
Title: On compactness via bI-open sets in ideal bitopological spaces.
National Seminar on Poverty and Rural Development in India with special reference to North Eastern Region, 16-17th September, 2017, Debraj Roy College, India.
Title: Vulnerabilities based on worldwide poverty and government responses to global slavery and human
trafficking: A statistical soft computing based approach.
International Seminar on Topology, Analysis, and Algebra, 11-12th February, 2017, University of North Bengal, India.
Title: Is the era of point set topology over?
National Conference on Advances in Mathematical Sciences, 22-23th December, 2016, Gauhati University, India.
Title: Two forms of pairwise Lindelofness and some results related to hereditary class in a bigeneralized topological space
International Conference on nonlinear dynamics, analysis and optimization, 10-12th December, 2015, Jadavpur University, India.
Title: Strategies in mixed budget.
International Conference on Frontiers in Mathematics-2015, 26-28th March,2015, Gauhati University, India.
Title: Fixed point theorems in fuzzy metric space w.r.t. structure.
International Conference on Recent Trends in Mathematics, 10-12th July, 2015, University of Allahabad, India.
Title: Some results in a bigeneralized topological space.
International Conference on Mathematical and computational biology, 28th Feb-3rd March, 2015, Indian Institute of Technology, Kanpur, India.
Title: Soft sets, soft bitpology and application to prostate cancer risk.
International Conference on Current Developments in Mathematics and Mathematical Sciences , 19-21th December, 2014, Calcutta Math Soc., India.
Title: Yes, equilibrium is possible between the strategies of consumers and govt.
The 8th International Conference on Mathematical Sciences for Advancement of Science and Technology, 21-23th December, 2014, Calcutta, India.
Title: Lindelofness and ideal in bitpological spaces.
UGC sponsored National Seminar " Advances in research in Physical Sciences", 25-26th March,2013, Cachar College, India.
Title: Different form of continuities in (I,gamma, delta)-generalized closed set in topological ideal.
National Seminar on Frontiers in Science and Technology, 08-09th March, 2013, Assam Science Society, India.
Title: (I,gamma, delta)-generalized closed set in topological ideal.
National Conference on Recent Trends in Mathematical and Computational Sciences, 28-30th November, 2012, IASST, India.
Title: Local functions generate sets in bitpological space.
Poster presentation:
12th Virtual Conference on Dynamical Systems Applied to Biology and Natural Sciences (DSABNS 2021),
Basque Center for Applied Mathematics (BCAM), Bilbao, Spain, 2-5 February, 2021.
Title: On conjecture 2 of Nada and Zohny
Professional membership:
Member, American Mathematical Society, USA.
Life member, Indian Science Congress Association, India.
Member, International Association of Engineers, Hong Kong.
Editorial board member: (For three years but not at present)
Journal of Autonomous Intelligence, USA.
Progress in Human Computer Interaction, Singapore.
Macro Management and Public Policies, Singapore.
Guest editor:
Guest editor, special issue of INYAS in Proceedings of Indian National Science Academy
Guest editor, special issue in memory of Prof. Henri Poincare, Filomat, 36(20), 2022. ( https://www.pmf.ni.ac.rs/filomat-content/2022/36-20/FILOMAT%2036-20.html )
Edited books:
Hazarika, B., Acharjee, S., & Srivastava, H. M. (Eds.). (2022). Advances in Mathematical Analysis and Its Applications. CRC Press. ( https://www.routledge.com/Advances-in-Mathematical-Analysis-and-its-Applications/Hazarika-Acharjee-Srivastava/p/book/9781032358048 )
Acharjee, S. (Ed.). (2023). Advances in Topology and Their Interdisciplinary Applications. Springer Nature. ( https://link.springer.com/book/10.1007/978-981-99-0151-7)
Hazarika, B., Acharjee, S., & Djordjevic, D.S. (Eds.). (2024). Advances in Functional Analysis and Fixed-point theorey: An interdisciplinary approach. Springer Nature. ( https://link.springer.com/book/10.1007/978-981-99-9207-2 )
B. Hazarika, S. Acharjee and D. S. Djordjevic (Eds.). (2025). Advances in Topology, Dynamical Systems and Interdisciplinary Applications, Springer, Nature, (https://link.springer.com/book/10.1007/978-981-96-1961-0)
Book reviews:
Ongoing
A. Hatcher, Topology of numbers, American Mathematical Society, 341 pp., 2023
Published
A. B. Sossinsky, Knots, Links and Their Invariants: An Elementary Course in Contemporary Knot Theory, American Mathematical Society, 129 pp., 2023 (Review was published in MathSciNet of American Mathematical Society) https://bookstore.ams.org/view?ProductCode=STML/101
A. Tangian, Analytical theory of democracy. History, Mathematics and Applications (Vol 1 and Vol 2), Springer, 508 p.$/$v.1; xiii, 511-1048$/$v.2 (2020) (Review was published in zbMATH Open, Germany)
https://zbmath.org/pdf/1511.91001.pdf
P. Caraiani, Introduction to quantitative macroeconomics using Julia. From basic to state-of-the-art computational techniques, Amsterdam: Elsevier/Academic Press. xi, 225~p. (2019). (Review was published in zbMATH Open, Germany)
https://zbmath.org/pdf/1469.91002.pdf
Book:
S. Acharjee and D.J. Sarma; A handbook on Joseph measure of commutativity of $D_n$ for even n, Research India Publications, Delhi-89, India (ISBN No: 978-93-84443-14-6).
Reviewer/ Referee:
I am an active reviewer/ referee of the following associations:
1. Reviewer of Mathematical Reviews ( American Mathematical Society)
2. Reviewer of American Psychological Association
3. Reviewer of Zentralblatt Math (Germany)
4. Reviewer of various journals of Springer, Elsevier, etc.
I have written reviews for the papers published in following journals on behalf of Mathematical Reviews (AMS)/ ZbMath Open (Germany) and the list is increasing with time:
Mind
Artificial Intelligence
Journal of Logic, Language and Information
Filomat
Archive for Mathematical Logic
The B.E. Journal of Theoretical Economics
Theoretical Computer Sciences
Journal of Mathematical Psychology
ACM Transactions on Computational Logic
Topology and its applications
Fuzzy Sets and Systems
Journal of Artificial Intelligence Research
International Journal of Economic Theory
Philosophical Studies
Theory and Decision
Mathematics in computer science
Algebra, logic and number theory,
Social choice and welfare,
Mathematical Social Sciences,
Journal of Advanced Studies in Topology
Fuzzy Optimization and Decision making
I have been acting as reviewer of the following journals and the list is increasing with time:
Heliyon
National Academy Science Letters
Psychological Methods
International Journal of Intelligent Systems
Journal of Theoretical and Philosophical Psychology
Chaos, Solitons and Fractals
Information Science
International Journal of Fuzzy System
Applied Mathematics and Information Sciences
Soft Computing
Afrika Mathematika,
Boletim da Sociedade Paranaense de Matematica,
Journal of Mathematics and Computer Science
Annals of Fuzzy Mathematics and Informatics,
Mathematical Science Letters,
South Asian Journal of Mathematics,
New trends in mathematical sciences,
Sohag Journal of Mathematics
Journal of Modern Physics
Journal of Terrorism Research
Italian Journal of Pure and Applied Mathematics
Songlanakarin Journal of Science and Technology