Dr. Sahabuddin Sarwardi received his B.Sc. Honours in Mathematics from University of Kalyani and M.Sc in Applied Mathematics from Jadavpur University, India in 2002 and 2004 respectively. He received the Degree of Doctor of Philosophy (Science) in Applied Mathematics from Visva-Bharati (a Central University) in 2013.   Formerly, he was an Assistant Professor in Mathematics at Raiganj Surendranath College, Raiganj - 733 134, Uttar Dinajpur, West Bengal. Presently he is an Associate Professor in the Department of Mathematics, Aliah University, IIA/27, New Town, Kolkata - 700 156, West Bengal, India. He loves to teach Differential Equations both the ODE & PDE, and Dynamical Systems. His research interest is focused on Non-linear Dynamics and Chaos.

Department of Mathematics and Statistics, Aliah University, IIA/27, New Town, Kolkata - 700 156, West Bengal, India.

Vidwan Profile: https://vidwan.inflibnet.ac.in/profile/542195

Google Scholar:  https://scholar.google.com/citations?user=iOvigN4AAAAJ&hl=en

Research Gate:  https://www.researchgate.net/profile/Sahabuddin_Sarwardi

ORCID ID: https://orcid.org/0000-0003-3888-5185

Web of Science: https://www.webofscience.com/wos/author/record/AEA-2587-2022

Scopus ID: https://www.scopus.com/authid/detail.uri?authorId=35111791100

Education

Ph.D. (2013) in Applied Mathematics from Visva-Bharati (a Central University),  Santiniketan, 731 235, West Bengal, India.

Supervisor: Prof. Prashanta Kumar Mandal, Dept. of Mathematics, Visva-Bharati.

Title of dissertation: “Mathematical Modelling of Some Ecological and Eco-epidemiological Systems”.

M.Sc. (2004) in Applied Mathematics, Jadavpur University, Kolkata-700 032, India.

B.Sc. (2002) in Mathematics (Honours), Krishnath College, Berhampore-742 101, University of Kalyani, India.  

Others Qualifications:

1. National Eligibility Test ( NET) C.S.I.R.  June- 2005,  ranked within  top 20% of the NET qualified candidates. Nominated for Shyama Prasad Mukherjee Fellowship.

2. State Level Eligibility Test (SLET)  February- 2005 (Mathematical Science),  Accredited by University Grant Commission (UGC) for Lectureship and the State-funded Research Scholarship.

3. General Aptitude Test  for Engineering (GATE) Conducted by I.I.T Kharagpur - 2006.  Qualified with All-India Rank-19,   Score- 523,  Percentile - 99.23. [GATE qualified twice: AIR-19(2006), AIR-189(2005)]

Teaching Experience

1. October, 2021 to Present: Associate Professor, Department of Mathematics, Aliah University, IIA/27, New Town, Kolkata-700 160, West Bengal, India.

2. July, 2012 – October, 2021: Assistant Professor, Department of Mathematics, Aliah University, IIA/27, New Town, Kolkata-700 160, West Bengal, India.

3. August, 2010 - July, 2012: Assistant Professor, Department of Mathematics, Raiganj Surendranath College, Raiganj-733 134, Uttar Dinajpur, West Bengal, India.

4. October, 2009 - August, 2010: Assistant Professor, Department of Mathematics, Aliah University, Kolkata, West Bengal, India.

Field of Specialization

 Operations Research.   

     O.RII- Nonlinear & Dynamic Programming. 

     O.RIII-Production & Inventory Control.

Courses Taught/Teaching

Taught the following courses at UG level:

• Linear Algebra
• Ordinary Differential Equation
• Ordinary and Partial Differential equation
• Real Analysis
• Complex Analysis
• Numerical Analysis

Taught the following courses at PG level:

• Partial Differential Equation
• Special Functions & Ordinary Differential Equation
• Dynamical Systems I & II
• Optimization Techniques
• Classical Mechanics & Calculus of Variations

Research Area

Major Area:  Nonlinear Dynamical Systems.

Specific Interests: Mathematical modelling of ecological and eco-epidemiological systems, Population dynamics under the influence of delay, diffusion, refuge, harvesting etc. Stability and bifurcation analysis, Dynamics of nonlinear systems and Chaos, Operations Research.

Experience

Research Experience:

1. July, 2007 to 2013: Research Scholar, Department of Mathematics, Visva-Bharati (a Central University), Santiniketan - 731 235, West Bengal, India.

Journal Papers Published

[1] Nawaj Sarif, Arjun Kumar, Anshu, Sahabuddin Sarwardi*. Blram Dubey, (2024). Spatio-temporal dynamics in a delayed prey–predator model with nonlinear prey refuge and harvesting, Chaos, Solitons and Fractals (Elsevier), Volume 186

[2] Sahabuddin Sarwardi, Hasanur Mollah, Aaeshah A. Raezah, Fahad Al Basir* (2024). Direction and stability of Hopf bifurcation in an eco-epidemic model with disease in prey and predator gestation delay using Crowley-Martin functional response. AIMS Mathematics, Volume 9(10), Year 2024, Pages 27930–27954. 

[3] Nawaj Sarif, Sahabuddin Sarwardi* (2024). Study of bifurcation and delay-driven chaos in a prey-predator model with fear in prey reproduction and two forms of harvesting. International Journal of Computational Methods (World Scientific) .

[4] Samim Akhtar, Nurul Huda Gazi, Sahabuddin Sarwardi* (2024). Mathematical modelling and bifurcation analysis of an eco-pidemiological system with multiple functional responses subjected to Allee effect and competition. Results in Control and Optimization (Elsevier), Volm. 15 (2), 1-27.

[5] Md Sarijul Islam, Sajjad Hossain, Sahabuddin Sarwardi* (2024). Dynamical Analysis of an Eco-epidemic System with Different Forms of Prey Refuges and Predator Harvesting. Discontinuity, Nonlinearity, and Complexity, Volm. 13 (1), 95-112.

[6] Hasanur Mollah, Sahabuddin Sarwardi* (2024). Mathematical modeling and bifurcation analysis of a delayed eco-epidemiological model with disease in predator and linear harvesting. International Journal of Modelling and Simulation (Taylor & Francis), pp. 1-21. 

[7] Nawaj Sarif, Sahabuddin Sarwardi*, Hany A. Hosham (2024). Global bifurcation analysis and derivation of an optimal harvesting policy of a prey–predator model with Holling type-IV functional scheme. International Journal of Modelling and Simulation (Taylor & Francis), pp. 1-20.

[8] Nawaj sarif, Sahabuddin sarwardi. (2023) Global Bifurcation Analysis of Higher Codimension in a Ratio Dependent Predator-Prey Model with Prey Refuge and Constant Yield-Harvesting of Both Species,Journal of Environmental Accounting and Management 11 (4), 375-401

[9] Md. Sarijul, Islam, Nazmul Sk, Sahabuddin Sarwardi. (2023) Deterministic and stochastic study of an eco-epidemic predator–prey model with nonlinear prey refuge and predator harvesting, The European Physical Journal Plus 138 (9), 851.

[10]. Nawaj sarif, Sahabuddin sarwardi. (2023) Complex dynamical study of a delayed prey–predator model with fear in prey and square root harvesting of both species, Chaos: An Interdisciplinary Journal of Nonlinear Science 33 (3)

[11]. Md. Sabiar Rahman, Md Sarijul Islam, Sahabuddin Sarwardi. (2023) Effects of prey refuge with holling type iv functional response dependent prey predator model, International Journal of Modelling and Simulation, 1-19.

[12] Md Sarijul Islam, Sahabuddin Sarwardi. (2023) Analysis of an Eco-Epidemic Predator Prey Model with Nonlinear Prey Refuges and Predator Harvesting, Journal of Applied Nonlinear Dynamics 12 (3), 465-483. 

[13] Md. Reduanur Mandal, Sajjad Hossain, Sahabuddin Sarwardi* (2023). Dynamics of an eco-epidemiological model with non-monotonic functional response of susceptible predator on prey species International Journal of Modeling, Simulation, and Scientific Computing. (World Scientific), Vol. 14, No. 04, 2350018.

[14] Mohammad Sajid, Sahabuddin Sarwardi, Ahmed S.Almohaimeed and Sajjad Hossain. (2023) Complex dynamics and Bogdanov-Takens bifurcations in a retarded van der Pol-Duffing oscillator with positional delayed feedback, Mathematical Biosciences and Engineering. AIMS Press. Volm. 20 (2), pp. 2874 - 2889

[15] Sahabuddin Sarwardi, Sajjad Hossain, Fahad Al Basir, Santanu Ray. (2023) Mathematical analysis of an ecological system using a non-monotonic functional response: effects of gestation delay and predator harvesting, International Journal of Dynamics and Control (Springer). Volm. 11(2), pp. 605-618..

[16] Krishnapada Das, Santanu Biswas, Binayak Nath , Sahabuddin Sarwardi, Jagdev Singh. (2022). Role of Omnivore of top-predator and Allee effect in prey species control of chaotic dynamic in tri-trophic food chain model, Nonlinear Studies, CSP - Cambridge, UK; I&S - Florida, USA,

[17] Sahabuddin Sarwardi*, Sajjad Hossain, Mohammad Sajid. Ahmed Saleh Almohaimeed (2022). Analysis of Bogdanov-Takens bifurcation in a retarded oscillator with negative damping and double delays, AIMS Mathematics. (AIMS Press).

[18] Sajjad Hossain, Md. Manarul Haque, Md. Humayun Kabir, Mod. Osman Gani, Sahabuddin Sarwardi* (2022). Complex spatiotemporal dynamics of a harvested prey-predator model with Crowley-Martin response function.. Results in Optimization and Control (Elsevier).

[19] Hafizul Molla, Sahabuddin Sarwardi, Stacey R. Smith, Mainul Haque*. (2021). Dynamics of adding variable prey refuge and an Allee effect to a predator–prey model. Alexandia Engineering Journal (Elsevier)DOI: 10.1016/j.aej.2021.09.039.

[20] Hafizul Molla, Md. Sabiar Rahman, Sahabuddin Sarwardi* (2021). Dynamical study of a prey–predator model incorporating nonlinear prey refuge and additive Allee effect acting on prey species. Modeling Earth Systems and Environment (Springer), Vol. 7(2), pp. 749-765.

[21] Nawaj Sarif, Sahabuddin Sarwardi* (2021). Analysis of Bogdanov-Takens Bifurcation of Codimension two in a Gause-Type Model with Constant Harvesting of Both Species and Delay Effect. Journal of Biological Systems. (World Scientific), Vol. 29, No. 03, pp. 741-771.

[22] Hafizul Molla, Sahabuddin Sarwardi*, Mohammad Sajid. (2021). Predator-prey dynamics with Allee effect on predator species subject to intra-specific competition and nonlinear prey refuge. Journal of Mathematics and Computer Science, (ISR). Vol. 25, 150-165.

[23] Sahabuddin Sarwardi, Md. Manarul Haque, Sajjad Hossain. “Analysis of Bogdanov–Takens bifurcations in a spatiotemporal harvested-predator and prey system with Beddington–DeAngelis-type response function’’, Nonlinear Dynamics, Springer 100 (2), pp. 1755–1778.

[24] A. A. Shaikh, H. K. Das, Sahabuddin Sarwardi. “Dynamics of an eco-epidemiological system with disease in competitive prey species”, Journal of Applied Mathematics and Computing, Spinger. (2019): 62, 525–545.

[25]. H. Molla, Md. S. Rahman, Sahabuddin Sarwardi. “Incorporating prey refuge in a prey-predator model with Beddington-DeAngelis type functional response: a comparative study on intra-specific competition”, Discontinuity, Nonlinearity, and Complexity, L&H Scientific Publishing. (2020): 9(3):395-419

[26] Md. Manarul Haque, Sahabuddin Sarwardi “Dynamics of a stage-structured-prey and predator model with linear harvesting of mature prey and predator” Discontinuity, Nonlinearity, and Complexity, L&H Scientific Publishing. (2020), 9(1):99 -116

[27] H. K. Das, A. A. Shaikh, Sahabuddin Sarwardi. “Mathematical analysis of an eco--epidemic model with different functional responses of healthy and infected predators on prey species”, Journal of Applied Nonlinear Dynamics, L&H Scientific Publishing. (2020): 9(4):667-684.

[28] N.H. Gazi, Md. R. Mandal, Sahabuddin Sarwardi. “Study of a predator-prey model system with Monod-Haldane functional response”, Discontinuity, Nonlinearity, and Complexity, L&H Scientific Publishing. (2020): 9(2):229-243.

[29] Md. M. Haque, Sahabuddin Sarwardi, S. “Complex dynamics of an exploited prey-predator model with nonlinear prey refuge”, Discontinuity, Nonlinearity, and Complexity, L&H Scientific Publishing (2019): 9(1), pp. 99 -116.

[30] Sahabuddin Sarwardi, Md. Reduanur Mandal , Nurul Huda Gazi. “Dynamics of One-Consumer-Two-Resources Ecological System with Beddington-Deangelis Functional Response” Journal of Applied Nonlinear Dynamics, L&H Scientific Publishing (2019): 8(4):637-653

[31]. Nurul Huda Gazi, Md. Reduanur Mandal, Sahabuddin Sarwardi. “Effect of nonlinear predator-prey harvesting on an ecological system with Monod-Haldane functional response”. International Journal of Mathematics & Computations (IJMC). CESER Publications™. (2019), 30(4):55-66.

[32] Pranab Kumar Bera, Sahabuudin Sarwardi, Md. Abdul Khan. “Application of Homotopy perturbation Method to an Eco-epidemic Model” International Journal of Ecological Economics & Statistics (IJEES). CESER Publications™. (2019), 40(2):17-24. 

[33]. Md. Manarul Haque, Sahabuddin Sarwardi. “Dynamics of a harvested prey-predator model with prey refuge depended on both species” published in Int. J. of Bifurcation and Chaos (IJBC), Vol. 28, No. 12 (2018) 1830040 (16 pages) . Article-DOI :10.1142/S0218127418300409.

[34] Sahabuddin Sarwardi. “An Optimization Model for Buyer-Supplier Co-Ordination Under Limited Warehouse Space and Incremental Price Discount”, Int. J. Math. Trends. Technology(IJMTT), DOI: 10.14445/22315373/ IJMTT-V55P574 (2018).

[35] Hafizul Molla, Md. Sabiar Rahman, Sahabuddin Sarwardi. “Dynamics of a Predator–Prey Model with Holling Type II Functional Response Incorporating a Prey Refuge Depending on Both the Species”. Published by International Journal of Nonlinear Sciences and Numerical Simulation. Vol. 20(1), pp. 89-104.

[36] Sahabuddin Sarwardi , Md. Reduanur Mandal , Nurul Huda Gazi. “Dynamical behaviour of an ecological system with Beddington-DeAngelis functional response”, Model. Earth Syst. Environ. Springer(2016) DOI 10.1007/s40808-016-0143-5.

[37] Md. Manarul Haque, Sahabuddin Sarwardi. “Effect of toxicity on a harvested fishery model, Model”. Earth Syst. Environ. Springer(2016) DOI: 10.1007/s40808-016-0175-x.

[38] Ujjwal Roy, Sahabuddin Sarwardi, N. C. Majee, Santanu Ray. “Effect of salinity and fish predation on zooplankton dynamics in Hooghly-Matla estuarine system”, India, Ecological Informatics, Elsevier (2016 ) DOI: 10.1016/j.ecoinf.2016.07.002

[39] Ujjwal Roy, Sahabuddin Sarwardi, N. C. Majee, Santanu Ray. “Effect of salinity and temperature on plankton dynamics of Hooghly-Matla estuarine system, India” Nonlinear Studies: The International Journal. (2015).

[40] Sahabuddin Sarwardi, Mainul Haque and Prashanta Kumar Mandal. “Persistence and global stability of Bazykin predator-prey model with Beddington-DeAngelis response function”, Communication in Nonlinear Science and Numerical Simulation, Elsevier (2014) ) DOI: 10.1016/j.cnsns.2013.05.029.

[41] Sahabuddin Sarwardi, Santanu Ray and Prashanta Kumar Mandal. “Dynamical behaviour of a two-predator model with prey refuge”, Journal of Biological Physics, Springer (2013), DOI 10.1007/s10867-013-9327-7.

[42] Sahabuddin Sarwardi, Santanu Ray and Prashanta Kumar Mandal. “Analysis of a competitive prey-predator system with a prey refuge”, BioSystems, Vol. 110 (2012), 133-148, Elsevier. DOI 10.1016/j.biosystems.2012.08.002.

[43] Sahabuddin Sarwardi, Mainul Haque and Prashanta Kumar Mandal. “Ratio dependent predator-prey models of interacting populations with delay effect”, Nonlinear Dynamics, Vol. 69 (2012), 817-836, Springer. DOI: 10.1007/s11071-011-0307-9.

[44] Mainul Haque, Sahabuddin Sarwardi, Simon Preston and Ezio Venturino. “Effect of delay in a Lotka-Volterra type predator-prey model with a transmissible disease in the predator species”, Mathematical Biosciences,Vol.No.234(1)(2011),47-57,Elsevier, DOI:10.1016/j.mbs.2011.06.009.

[45] Pallav Jyoti Pal, Sahabuddin Sarwardi, Tapan Saha, and Prashanta Kumar Mandal. “Mean square stability in a modified Leslie-Gower and Holling-type II predator-prey model”, Journal of Applied Mathematics & Informatics, Vol. 29(2011), 781-802.

[46] Zhijan Liu and Sahabuddin Sarwardi. “Existence of periodic solution of some eco-epidemiological systems”, Journal of Applied Mathematics & Informatics, Vol. 28(2011), 1359-1378.

[47] Sahabuddin Sarwardi, Mainul Haque and Ezio Venturino. “Global stability and persistence in LG-Holling type-II diseased predators ecosystems”, Journal of Biological Physics, Vol. 37(2010), 91-106, Springer, DOI 10.1007/s10867-010-9201-9.

[48] Gui Quan Sun, Sahabuddin Sarwardi, Pallav Jyoti Pal and Md. Sabiar Rahman. “The spatial patterns through diffusion-driven instability in modified Leslie-Gower and Holling-type II predator-prey model”, Journal of Biological Systems, Vol. 18, No. 2 (2010) 1–11, World Scientific Publishing Company, DOI: 10.1142/S021833901000338X .

[49] Sahabuddin Sarwardi, Mainul Haque and Ezio Venturino. “A Leslie-Gower Holling-type II eco-epidemic model”, Journal of Applied Mathematics and Computing, Vol. 35(2009), 263-280, Springer, DOI 10.1007/s12190-009-0355-1.

Awards

1. Nagendranath Bhattacharya Memorial Prize (Gold-Medal) for standing Second in the order of merit in B.Sc. Honours in Mathematics in the University of Kalyani in 2002.
2.  Council of Scientific and Industrial Research Fellowship for Doctoral Research in Mathematics, Sponsored by CSIR, Government of India.
3. Reciepient of National Fellowship, Govt. Of India.

Ph.D. Thesis Guidance

Degree Awarded

[1] Md. Reduanur Mandal, 29^th August, 2013- 10.07.2018, “Some Mathematical Modeling on Complex Biological Systems”. Currently,He awarded his Ph.D. Degree on 10^th July, 2018.

At present, he is working as an Assistant Professor in Mathematics at Siliguri College, Siliguri, Darjeeling via West Bengal College Service Commission.

[2] Md. Manarul Haque, 29^th October, 2014- 11^th April, 2019 “Modeling the Dynamics of Some Exploited Renewable Ecological Resources”. He awarded Ph.D. degree on 26^th November, 2018.

At present, he is working as an Assistant Professor in Mathematics at Marwari College. Kisanganj - 855107 via Bihar State University and College Service Commission.

[3] Hafijul Mollah, 3^rd February, 2016 -4^th January, 2020, "Studies on the Dynamics of Some Ecological Systems of Interacting Populations". He awarded Ph.D. degree on 9^th November, 2020.

At present, he is working as an Assistant Professor in Mathematics at Manbhum Mahavidyalaya, Manbhum, Purulia, via West Bengal College Service Commission.

[4] Sajjad Hossain, 14^th February 2017- December, 2022, “Analysis of Some Nonlinear Mathematical Models I)escribing Different Physical Phenomena”. He awarded his Ph.D. Degree on 22^th December, 2022.

Currently, he is working as an Assistant Professor in the Department of Mathematics and Statistics, Aliah University, Kolkata -700160, West Bengal, India.

[5] Nawaj Sarif, 30^th October, 2018- till date, “Mathematical Modelling and Analysis of Some Biological Systems”. He awarded his PhD Degree on 25.01.2024.

Currently, he is working as an Assistant Professor in the Department of Mathematics at Aditya Institute of Technology and Management, Tekkali - 532 201. Vizianagaram. Andhra Pradesh.

The students who are working research work towards Ph.D. degree under my supervision:

[1] Md Sarijul Islam, 16^th June, 2021 -till date, “Modeling and Analysis of Some Mathematical Problems on Eco-epidemiological Systems and their Possible Control Strategies”. He will submit his PhD Thesis shortly.

Currently, he is working as Assistant Teacher at Kuarmunda Sundargarh, Odisha- 770039 via Ekalavya Model Residential Schools Staff Selection Examination (EMRS-SSE-2023).

[2] Hasanur Mollah, 17^th April, 2019-till date, “Bifurcation Analysis of Some Eco-epidemiological Model Systems”.

[3] Ariful Islam, 22th May, 2024 -till date, “Studies on Rich Dynamical Outcomes of Some Ecological and Electrodynamical Systems.”

[4] Abu Said, 22th May, 2024 -till date, “Rich Dynamical Outcomes of Some Fractional order discrete dynamical Systems.”

MASTER Thesis Guidance

2018: 

•   Istiaque Ahmed,  Roll No. MAT162005. Project Report on “Application of Riccati Equation to the Gross-Pitaevskii Nonlinear Partial Differential equation”.
•   Musaraf Hossain, Roll No. MAT162006.   Project Report on “Bogdanov-Takens Bifurcation in the Romer Model with Learning by Doing”.
• Nidhi Jha, Roll No. MAT162035. Project Report on “van der Pol Oscillator for Large Damping”.
• Chhadikul Sekh, Roll No. MAT162050. Project Report on “Bogdanov-Takens Bifurcation of Codimension 3 in an Exploited Ecosystem”.

2017:

• Khairul Alam, Roll No. MAT152013. Project Report on “Bifurcation Theory”.
•   Abu Said, Roll No. MAT152035.   Project Report on “Some Dynamical System for the Strange Attractors”.
• Masud Aktar, Roll No. MAC125019. Project Report on “Dynamical Analysis of Some Interacting Species Models”.

2016: 

• Krishna Ghosh, Roll No. MAC142042. Project Report on “Lyapunov Stability Analysis”.

• Md. Nur Ali, Roll No. MAC142020. Project Report on “Centre Manifold”.

Project Works

I have applied for a project under MATHEMATICAL RESEARCH IMPACT-CENTRIC SUPPORT (MATRICS) SCHEME, sponsored by Science and Engineering Research Board (SERB),  Department of Science and Technology, Govt. of India.

Proposed project  title “An Extension of the study of major commercially viable fish population dynamics in Hooghly–Matla estuarine system, India.”

Project file no.:  MTR/2018/001170/MS

Orientation/Refresher/QIP CourseAttended/Organized

OP/RC/STC:

[1] Refresher Course in the Subject “Mathematical Methods, Techniques and Applications”, Sponsored by University Grants Commission, Govt. of India, Venue: UGC Academic Staff College, Jadavpur University, Kolkata, India, during 18/11/2013 23- 07/12/2013.

[2] 59^th Orientation Programme, Sponsored by University Grants Commission, Govt. of India, Venue: UGC Academic Staff College, Jadavpur University, Kolkata, India, during 26/11/2015-23/12/2015.

Seminar/Conference/Workshop

[1] Presented the paper entitled “Persistence and global stability of a delayed predator-prey model with Beddington De-Angelis response function” in National Seminar on Non-Linear Aspects of Analysis and Algebra (NAAA-2012), organized by the Department of Mathematics, Visva-Bharati, Santiniketan, W.B., India during March 24-25 (2012).

[2] Presented the paper entitled “Effect of refuge used by the prey in predator-prey systems with competition in prey species” in National Seminar on Mathematics & Applications, organized by the Department of Mathematics, The Burdwan University, W.B., India  during  March 28-29 (2012).

[3] Presented the paper entitled “Effect of delay in a  Lotka-Volterra type predator-prey model with a transmissible disease in the predator species” in National Seminar on Analysis of Nonlinear Systems (ANS-2011), organized by the Department of Mathematics, Visva-Bharati, Santiniketan, W.B., India during March 26-27 (2011).

[4] Attended an International Conference on Recent Advances in Mathematics & Application (ICRAM-2010), organized by the Department of Mathematics, The Burdwan University, W.B., India during January 13-15 (2010).

[5] Attended the Workshop and Symposium on Mathematical Ecology, organised by Indian Institute of Science Education and Research (IISER-Kolkata), W.B., and India during December-7-14 (2010).

[6]. Workshop and Symposium on Applied Nonlinear Dynamics and Chaos (ANDC-2014) during 24^th-31^st May, 2014, organized by Government College of Engineering and Textile technology, Berhampore, West Bengal.

[7]. 7 Days Faculty development Program on Research Methodology during 12-20 July, 2016, organized by Dept. of Management, Aliah University

[8]. Attended the Science Academics “Three days lecture workshop on Hyperbolic Partial Differential Equation and Conservation Laws (HPDECL-2016) organized by Dept. of Applied Mathematics, Calcutta University.

[9]. Teachers' Enrichment Workshop in Mathematics (TEWM-2017) during 15 June-29 June, 2017, organized by Calcutta Mathematical Society (CMS).

[10]. National Level Teachers’ Enrichment Workshop in Mathematical Sciences (NLTEWMS-2018) during May 23 – June 06, 2018, organized by Calcutta Mathematical Society (CMS).

[11] Presented the paper entitled “Dynamical behaviour of an ecological system” in the Workshop and Symposium on Applied Nonlinear Dynamics and Chaos (ANDC-2014) during 24^th-31^st May, 2014,  organized by Government College of Engineering and Textile technology, Berhampore, West Bengal.

Other Notable Activities

Journal  Referee:

1. Journal of Biological Physics, Springer
2. BioSystems, Elsevier
3.  Nonlinear Dynamics, Springer
4.  Nonlinear Analysis: Modelling and Control: LANA
5. International Journal of Biomathematics, World Scientific

Editorial Advisory Board Member