Participation

1. Invited to deliver a talk on "Role of toxin producing phytoplankton for coexistence of planktonic ecosystem" in the Workshop on Quantitative Ecology during 09-20 May 2005 at the International Centre for Theoretical Physics (ICTP), Trieste, Italy.

2. Invited to deliver a talk on “Mathematical Modelling on harmful algal blooms in the presence of toxic substances” in the International Congress on Industrial and Applied Mathematics (ICIAM07) during 16-20 July 2007 at ETH Zurich and University of Zurich, Zurich, Switzerland.

3. Invited to deliver a talk on "Non toxic phytoplankton, toxic phytoplankton and zooplankton interaction in the presence of environmental fluctuations” in the Advanced School and Conference on Statistics and Applied Probability in Life Sciences during 24 September-12 October 2007 at the International Centre for Theoretical Physics (ICTP), Trieste, Italy.

4. Invited to participate in the “Special Semester on Quantitative Biology Analyzed by Mathematical Methods” held during November 11-25, 2007 at RICAM-Johan Radon Institute for Computational and Applied Mathematics, Linz, Austria.

5. Invited to deliver a talk on "Role of toxic phytoplankton in open marine system” in the European Conference on Ecological Modelling (ECEM07) held during November 27-30, 2007 at the International Centre for Theoretical Physics (ICTP), Trieste, Italy.

6. Invited to deliver a talk on "Role of infection in an eco-epidemiological system-a mathematical study” in the Joint ICTP-IAEA Conference on Predicting Disease Pattern According to Climate Changes during 12-14 May 2008 at the International Centre for Theoretical Physics (ICTP), Trieste, Italy.

7. Invited to participate and to present a paper entitled “Role of toxin producing phytoplankton for the occurrence and control of plankton bloom in the presence of environmental fluctuations- a mathematical study” in the International Conference on Mathematical Biology: Modelling and Differential Equations, organized by CRM and held in Bellaterra, Barcelona, Spain from February 9 to 13, 2009.

8. Invited to participate and to present a paper entitled “Competing effects of phytoplankton for the occurrence and control of plankton bloom in the presence of environmental fluctuations-a mathematical study” in the Workshop on Theoretical Ecology and Global Change organized by International Centre for Theoretical Physics (ICTP), Trieste, Italy from 02-13 March 2009.

9. Invited to participate and to present a paper entitled “Non-toxic phytoplankton, toxin producing phytoplankton and zooplankton interaction in an open marine system” in the Workshop and Conference on Biogeochemical impacts of Climate and Land-Use Changes on Marine Ecosystems organized by International Centre for Theoretical Physics (ICTP), Trieste, Italy from 02-10 November 2009.

10. Invited to participate and to present a paper entitled “A model of plankton-nutrient interaction with instantaneous nutrient recycling” in the International Congress of Mathematicians (ICM 2010) held during 19-27 August 2010 at Hyderabad, India.

11. Received INDO-US Research Fellowship for Collaborative research at School of Biology, Georgia Institute of Technology, Atlanta, Georgia, USA in 2010.

12. Invited to give a lecture in the Analysis and Applied Mathematics Seminar held during October 26, 2010 at Department of Mathematics, Kennesaw State University, Georgia, USA.

13. Invited to participate and presented a paper in the 10th Annual Red Raider Mini-Symposium held during October 28 - 30, 2010 at Department of Mathematics, Texas Tech University, Texas, USA.

14. Invited to participate and to present a paper entitled “Role of infection in an eco-epidemiological system - a mathematical study” in the Blackwell-Tapia Conference held during November 5-6, 2010 at MBI, Ohio State University, Ohio, USA.

15. Invited to give a lecture in the Applied Mathematics Seminar and joint research work with Prof. Shigui Ruan during November 10-13, 2010 at Department of Mathematics, University of Miami, Coral Gables, Florida, USA.

16. Invited to give a lecture in the Bio-Mathematics Seminar and joint research work with Prof. Sergei Pilyugin during November 29-December 04, 2010 at Department of Mathematics, University of Florida, Gainesville, Florida, USA.

17. Invited to participate and to present a paper entitled “Dynamics of Holling type III stage structured system with cannibalism and harvesting of matured predator” in Mathematical Biology Workshop and IGTC Summit at the University of Victoria, Victoria, BC, Canada during 14-16 July, 2011.

18. Invited to participate and to present a paper entitled “The Role of Space in Stage-structured Cannibalism with Harvesting of Predator” in the International Congress on Industrial and Applied Mathematics (ICIAM 2011) held during 18-22 July 2011 at Vancouver, BC, Canada.

19. Invited to participate and to present a paper entitled “Role of constant nutrient input and mortality rate of planktivorous fish in plankton community ecosystem with instant nutrient recycling” in the Fifth G.J.Butler International Conference on Mathematical Biology and Differential Equations held during 25-30 July 2011 at University of Alberta, Edmonton, Alberta, Canada.

20 Invited to participate and gave a lecture on “Marine bacteriophage infection with constant latency period- a model based study” in the Third International Conference on Mathematical Modeling and Analysis of Population in Biological Systems held during 7-9 October 2011 at Trinity University, San Antonio, Texas, USA.

21. Invited to give a lecture on “Plankton nutrient interaction model with harvesting” in the International Conference on Mathematical and Theoretical Biology held during 23-27 January 2012 at IISER, Pune, India

22. Invited to deliver a lecture on “Plankton-Nutrient Interaction in an Open Marine System-A Mathematical Study” in the Rocky Mountain Mathematics Consortium Conference on Mathematical Modelling on Ecology and Epidemiology held during June 11-22, 2012 at University of Wyoming, Laramie, USA.

23. Invited to participate and to present a paper at the International Conference “India Biodiversity Meet-2013” held 14th March 2013 at Indian Statistical Institute, Kolkata, India

24. Invited to participate and to present a paper at the First Indo-US Research Fellows Conclave held during 15-17 March, 2013 at Pune, India

25. Participated at the Summer School on Mathematics of Infectious Diseases Jointly organized by Fields Institute, University of Toronto and Centre for Disease Modeling, Department of Mathematics, York University, Toronto, Canada during 19-27 May, 2013.

26. Invited to deliver a lecture at the Seminar on Infinite Dimensional Dynamical Systems organized by Department of Mathematics and Statistics, York University, Toronto, Canada on 27th May, 2013.

27. Invited to participate and to present a paper entitled “ Dynamics of asymmetric intraguild predation with time lags in reproduction and maturation” at the International Conference on Models in Population Dynamics and Ecology - MPDE’13 during 26 - 29 August 2013, at University of Osnabrück, Germany.

28. Invited to participate and to present a paper entitled “Invasive predator mediated coral-macroalgal phase shifts” at the International Symposium on Mathematical and Computational Biology- BIOMAT 2013 during 04 - 08 November 2013, at The Fields Institute for Research in Mathematical Sciences , Toronto, Canada

29. Invited to participate and to present a paper entitled “Plankton nutrient interaction model with harvesting” at the International Symposium on Mathematical and Computational Biology- BIOMAT 2013 during 04 - 08 November 2013, at The Fields Institute for Research in Mathematical Sciences, Toronto, Canada.

30. Invited to participate and to present a paper entitled “Hysteresis in Coral Reefs under Macroalgal Toxicity and Overfishing” at the International Conference on Nonlinear Dynamics with Applications to Biology during 28 - 30 May 2014, at the National Centre for Theoretical Sciences (NCTS), National Tsing-Hua University, Taiwan.

31. Invited to deliver a lecture at the Indo-French Workshop in Applied Mathematics at Indo-French Centre for Applied Mathematics (IFCAM), Indian Institute of Science, Bangalore, India on 28-31 July, 2014.

32. Invited to participate and to present a paper at the International Conference on Models in Population Dynamics and Ecology - MPDE’14 during 25 - 29 August 2014, at University of Torino, Italy.

33. Invited to participate and to present a paper at the International Symposium on Mathematical and Computational Biology- BIOMAT 2014 during 02 - 08 November 2014, at The Institute of Mathematics, Polish Academy of Sciences, Poznan, Poland.

34. Invited as a special session speaker in the Workshop on Mathematical Biology and Nonlinear Analysis held in University of Miami, Coral Gables, Florida, USA during 19-21 December 2014.

35. Presented a paper in the International Congress on Industrial and Applied Mathematics (ICIAM 2015), Beijing, China, 10-14, August, 2015.

Shorter visits to other Institutions

1. Kennesaw State University, Georgia, USA. 2010.

2. University of Miami, Coral Gables, Florida, USA. 2010.

3. University of Florida, Gainesville, Florida, USA. 2010.

4. York University, Toronto, Canada. May, 2013.

5. The Fields Institute for Research in Mathematical Sciences, Toronto, Canada. November, 2013.

6. Indo-French Centre for Applied Mathematics (IFCAM), Indian Institute of Sciences (IISc), Bangalore. December, 2013.

7. National Centre for Theoretical Sciences (NCTS), National Tsing Hua University, Taiwan in May 2014.

8. Academia Sinica, National Taiwan University, May 2014.

9. Shanghai Jiao Tong University, P.R.C., August 2015.