Pralay Kumar Karmakar

Professor and Physics/Faculty
Tezpur University, Assam, India



Plasma Physics, Astrophysics, Nonlinear Dynamics, Fluid Dynamics


(1) The first-batch graduate (with 2nd position) from Birjhorma Mahavidyalaya with Physics major

(2) MSc (with specialization in Theoretical Physics) from Gauhati University

(3) Worked in Center of Plasma Physics – Institute for Plasma Research (CPP-IPR) in Theoretical Plasma Physics for PhD awarded by Gauhati University

(4) Joined the Department of Physics, Tezpur University, as Assistant Professor in 2006; now, working as Associate Professor



(3) CSIR Senior Research Fellowship (SRF)

(2) Several projects from GoI sources (UGC, SERB)


[1] Plasma Science Society of India (PSSI LM ID: 424)
[2] Assam Science Society (ASS LM ID: 107)
[3] Departmental Advisory Committee (DAC)
[4] Life Member of several National and International Physical Societies


Ph.D. (Plasma Physics)


Astroplasma Physics, Fluid Stability, Plasma Physics, Plasma Sheaths, Complex Systems, Cosmic Fluid Dynamics, and Structure Formation


Astrophysical plasmas and fluids

I am interested in structure formation dynamics

Applications Invited
Collaborators, Experts, Examiners, etc

Scholar Citations


Scholar h-index


Scholar i10-index


  • Collision dynamics of magnetoacoustic waves in a spin-1/2 dense quantum degenerate plasma: Analysis of overtaking interactions
    SY El-Monier, EM El-Bayoumi, PK Karmakar, A Atteya
    Chinese Journal of Physics 88, 810-826 2024

  • Nonlinear dust-acoustic wave dynamics in nonthermal Saturnian E-ring with negative ion moderation
    T Bezbaruah, PK Karmakar
    Chinese Journal of Physics 2024

  • Dynamics of pulsational mode in the EiBI gravity fabric
    M Das, PK Karmakar
    Chinese Journal of Physics 87, 232-245 2024

  • Nonlinear pulsational mode dynamics in strongly correlated dust molecular clouds
    K Devi, A Nag, J Paul, U Sarma, PK Karmakar
    Journal of Taibah University for Science 17 (1), 2202605 2023

  • Gravitational Instability in Polytropic Astrofluids in the EiBI Gravity Framework
    A Hazarika, M Das, PK Karmakar

  • A theoretical study of heavy nucleus-acoustic waves in white dwarf core environments
    S Dasgupta, PK Karmakar
    Pramana 97 (4), 148 2023

  • Acoustic Modes In Astrophysical Quantum Plasmas
    PK Karmakar
    National Symposium on Gaseous Discharges (NSGD - 2023), Pondicherry 2023

  • A theoretic analysis of magnetoactive GES-based turbulent solar plasma instability
    S Das, A Atteya, PK Karmakar
    Monthly Notices of the Royal Astronomical Society 523 (4), 5635-5660 2023

  • Nonlinear Jeans-Buneman instability in gravitating complex plasmas
    T Bezbaruah, PK Karmakar
    Waves in Random and Complex Media, 1-22 2023

  • Modal stability of low-frequency nucleus-acoustic waves in completely degenerate white dwarf cores and their nearly degenerate surroundings
    S Dasgupta, A Atteya, PK Karmakar
    Chinese Journal of Physics 83, 539-557 2023

  • Acoustic stability of a self-gravitating cylinder leading to astrostructure formation
    S Dasgupta, A Atteya, PK Karmakar
    Scientific Reports 13 (1), 7163 2023

  • Energy and Instability of Ion-Acoustic Solitary Waves in Inhomogeneous Magnetized Plasmas
    SY El-Monier, PK Karmakar, A Atteya

  • Propagation of nucleus-acoustic waves in the cores of ONeMg white dwarfs
    S Dasgupta, PK Karmakar
    Frontiers In Physical Sciences 1, 60-72 2023

  • A multi-order nonlinear meta-analysis of bifluidic fireball sheath fluctuations
    S Dutta, PK Karmakar
    Waves in Random and Complex Media, 1-27 2023

  • Nonlinear streaming instability in viscoelastic quantum dusty plasmas
    S Roy, T Bezbaruah, PK Karmakar
    Waves in Random and Complex Media, 1-23 2023

  • Solar plasma characterization in Kappa (κ)-modified polytropic turbomagnetic GES-model perspective
    P Sarma, PK Karmakar
    Monthly Notices of the Royal Astronomical Society 519 (2), 2879-2916 2023

  • Instability of magnetosonic waves in magnetized degenerate half-spin-polarized quantum plasma
    WF El-Taibany, PK Karmakar, AA Beshara, MA El-Borie, SA Gwaily, ...
    Waves in Random and Complex Media, 1-23 2023

  • A perceptive overview of nucleus-acoustic waves in degenerate quantum astroplasmas
    PK Karmakar, S Dasgupta 2023

  • Evidence of oblique electron acoustic solitary waves triggered by magnetic reconnection in Earth’s magnetosphere
    A Atteya, SK EL-Labany, PK Karmakar, MS Afify
    Physica Scripta 98 (1), 015601 2022

  • A hybrid GNA instability
    PK Karmakar, D Kalita, A Atteya
    Scientific Reports 12 (1), 19990 2022


  • A gravito-electrostatic sheath model for surface origin of subsonic solar wind plasma
    CB Dwivedi, PK Karmakar, SC Tripathy
    The Astrophysical Journal 663 (2), 1340 2007
    Citations: 44

  • Stability analysis of non-thermal complex astrofluids in the presence of polarized dust-charge fluctuations
    P Dutta, P Das, PK Karmakar
    Astrophysics and Space Science [DOI 10.1007/s10509-016-2912-z] 361 (322), 1-8 2016
    Citations: 26

  • Electron inertial delay effect on acoustic soliton behavior in transonic region
    U Deka, A Sarma, R Prakash, PK Karmakar, CB Dwivedi
    Physica Scripta 69 (4), 303 2004
    Citations: 24

  • Nucleus-acoustic waves: Excitation, propagation, and stability
    PK Karmakar, P Das
    Physics of Plasmas 25 (8) 2018
    Citations: 22

  • A numerical characterization of the Gravito-Electrostatic Sheath equilibrium structure in solar plasma
    K Pralay Kumar, D Chandra Bhushan
    International Journal of Astronomy and Astrophysics 2011 2011
    Citations: 22

  • Graphical analysis of electron inertia induced acoustic instability
    PK Karmakar, U Deka, CB Dwivedi
    Physics of plasmas 12 (3) 2005
    Citations: 22

  • Stability analysis of the Gravito-Electrostatic Sheath-based solar plasma equilibrium
    PK Karmakar, HP Goutam, M Lal, CB Dwivedi
    Monthly Notices of the Royal Astronomical Society 460 (3), 2919-2932 2016
    Citations: 20

  • Nonlinear pulsational eigenmodes of a planar collisional dust molecular cloud with grain-charge fluctuation
    PK Karmakar, B Borah
    The European Physical Journal D 67, 1-14 2013
    Citations: 20

  • Nonlinear stability of pulsational mode of gravitational collapse in self-gravitating hydrostatically bounded dust molecular cloud
    PK Karmakar
    Pramana 76, 945-956 2011
    Citations: 19

  • Propagatory dynamics of nucleus-acoustic waves excited in gyrogravitating degenerate quantum plasmas electrostatically confined in curved geometry
    S Dasgupta, PK Karmakar
    Scientific Reports 11, 19126 (1-12) 2021
    Citations: 18

  • Electrostatic streaming instability modes in complex viscoelastic quantum plasmas
    PK Karmakar, HP Goutam
    Physics of Plasmas 23 (, 112121 (1-14) 2016
    Citations: 18

  • Viscoelastic pulsational mode
    P Dutta, PK Karmakar
    Astrophysics and Space Science 362 (10.1007/s10509-017-3120-1), 141 (1-12) 2017
    Citations: 17

  • Pulsational mode fluctuations and their basic conservation laws
    B Borah, PK Karmakar
    Advances in Space Research 55, 416-427 2015
    Citations: 17

  • A generalized hydrodynamic model for acoustic mode stability in viscoelastic plasma fluid
    B Borah, A Haloi, PK Karmakar
    Astrophysics and Space Science 361 (5), 165 2016
    Citations: 16

  • Instability analysis of cosmic viscoelastic gyro-gravitating clouds in the presence of dark matter
    PK Karmakar, P Das
    Astrophysics and Space Science 362 (10.1007/s10509-017-3125-9), 142 (1-13) 2017
    Citations: 13

  • Nonlinear gravito-electrostatic waves in self-gravitating complex plasma in presence of ion-drag effects
    A Haloi, PK Karmakar
    Astrophysics and Space Science 358, 41(1)-41(9) 2015
    Citations: 13

  • New nonlinear eigenmodes of a self-gravitating spherical charged dust molecular cloud
    PK Karmakar, B Borah
    Physica Scripta 86 (2), 025503 2012
    Citations: 13

  • Analyzing the instability dynamics of spherical complex astroclouds in a magnetized meanfluidic fabric
    D Kalita, PK Karmakar
    Physics of Plasmas 27 (2) 2020
    Citations: 12

  • Stability of gravito-coupled complex gyratory astrofluids
    PK Karmakar, P Das
    Astrophysics Space Science 362, 115 2017
    Citations: 12

  • Nonlinear waves in bipolar complex viscous astroclouds
    PK Karmakar, A Haloi
    Astrophysics and Space Science 362 (DOI 10.1007/s10509-017-3067-2), 94 (1-13) 2017
    Citations: 12