Invited Talks
(1) “Second order finite difference scheme for time dependent singularly perturbed differential-difference convection-diffusion problem”, presented in International Conference on Current Trends in PDEs: Theory & Computations, Dec. 28-30, 2015, South Asian University, New Delhi, India.
(2) “Higher order numerical scheme for singularly perturbed differential-difference convection-diffusion problem”, presented in International Conference on Mathematical Modelling Differential Equations, Scientific Computing & Applications, March 27-29, 2016, IIT Kanpur, India.
(3) “Second order finite difference scheme for time dependent singularly perturbed problem with two small parameters”, presented in International Conference on Recent Advances in Theoretical & Computational Partial Differential Equations with Applications December 05-09, 2016, Panjab University, Chandigarh, India.
(4) “Higher order fitted mesh finite difference scheme for singularly perturbed turning point problem”, presented in International Conference on Current Trends in Theoretical and Computational Differential Equations with Applications Dec. 01-05, 2017, South Asian University, New Delhi, India.
(5) “Second order parameter-uniform finite difference scheme for singularly perturbed parabolic problem with a boundary turning point”, presented in 4-th International Conference on Recent Developments in Theory, Computation & Applications Jan. 21-23, 2019, South Asian University, New Delhi, India.
(6) “Higher order numerical scheme for Singularly perturbed problem with an interior turning point”, presented in 2nd International Conference on Mathematical Modelling, Applied Analysis and Computation August. 08-10, 2019, JECRC University, Jaipur, India.
(7) ``Numerical Methods for Singularly Perturbed Problems'', presented in TEQIP sponsored FDP on ``Numerical Solutions of Differential Equations'' from 16-20, September, 2020 at NIT Jalandhar.
(8) ``Higher Order Uniformly Convergent Finite Difference Scheme For Singularly perturbed Parabolic Problem With A Boundary Turning Point", presented in 3rd International conference on Mathematical Modelling, Applied Analysis and Computation-2020 (ICMMAAC-20) during 7-9 August, 2020, JECRC University
(9) “Higher Order Uniformly Convergent Finite Difference Scheme for Singularly Perturbed Parabolic Problem with a Boundary Turning Point”, presented in International Conference on Computational Sciences-Modelling, Computing and Soft Computing CSMCS-2020, Sept. 10-12, 2020, NIT Calicut
(10) ``Numerical Methods for Singularly Perturbed Time-fractional Differential Equations" presented in RTU(ATU) TEQIP-III Sponsored Online Workshop on "Applications of Fractional Calculus in Engineering & Technology" from March 01 to March 05, 2021 at Anand-ICE Jaipur
(11) “Higher order numerical scheme for singularly perturbed problem with an interior turning point” presented in “National Symposium on Current Trends in Numerical Methods for PDEs” January 16, 2022 at IIT Kanpur.
(12) “A robust uniformly convergent finite difference scheme for the time-fractional singularly perturbed convection-diffusion problem” presented in ``5th International Conference on Mathematical Modelling, Applied Analysis and Computation-2022 (ICMMAAC-22), 04-06 August, 2022, JECRC University, Jaipur.
(13) “Richardson extrapolated finite difference scheme for singularly perturbed interior turning point problem with exponential interior layers” presented in 6th International Conference on Mathematical Modelling, Applied Analysis and Computation-2023 (ICMMAAC-23), 03-05 August, 2023, JECRC University, Jaipur.
(14) “Differential Equations and its Applications ” presented in Workshop on Applications of Engineering Mathematics, 09-12 December, 2023, SKIT Jaipur.
(15) “A uniformly convergent numerical scheme for time-fractional singularly perturbed convection-diffusion problem” presented in 5th International Conference on Mathematical Techniques and Applications-2024 (ICTMA-24), 02-04 January, 2024, SRM University, Chennai.
(16) “An Introduction to the Numerical Methods for Singularly Perturbed Problems” presented in Online Certificate Course on Mathematical Modeling on Biological & Physical Systems with Different Simulation Techniques, 04-09 January, 2024, Mahananda Mahavidylaya, Kolakata.
(17) “Higher-order finite difference scheme for singularly perturbed interior turning point parabolic problem with interior layers ” presented in FDP on Recent Trends in Biomathematics and Dynamical System, Bifurcation, Chaos and Numerical Methods, 07-13 February, 2024, Mahananda Mahavidylaya, Kolakata.
(18) “Second-order fitted mesh finite difference scheme for singularly perturbed turning point problem with interior layers ” presented in Workshop on Recent Development of Mathematical Sciences on Biological and Dynamical Systems with Fuzzy and Fractional Environments, 19-23 June, 2024, Mahananda Mahavidylaya, Kolakata.
(19) “A robust uniformly convergent finite difference scheme for the time-fractional singularly perturbed convection-diffusion problem ” presented in 2nd International Conference on Recent Advances in Fluid Mechanics and Nanoelectronics” (ICRAFMN-2024), 10-12 July, 2024, Manipal University, Jaipur.
(20) ``Richardson extrapolated finite difference scheme for singularly perturbed interior turning point problem with exponential interior layers" presented in the Annual Conference of Indian Society for Mathematical Modeling and Computer Simulation (ISMMACS) and International Conference on Differential Equations: Theory, Computation and Applications, November 29 – December 1, 2024, South Asian University, New Delhi.
(21) ``Layer resolving grid generation and second-order numerical scheme for solving singularly perturbed boundary turning point problems with power-of-type-1 and hybrid layers" presented in 12th National Conference on Mathematical Techniques and Applications (NCMTA-2025), 09-10, January 2025, SRM University, Chennai