Pralay Kumar Karmakar

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Associate Professor and Physics/Faculty
Tezpur University, 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


    T Bezbaruah, PK Karmakar
    ICPDP, 18 2022

    PK Karmakar, S Dasgupta
    ICPDP, 52 2022

  • Relativistic ion-acoustic waves in electrospherically confined gyromagnetoactive quantum plasmas
    S Dasgupta, PK Karmakar
    Chinese Journal of Physics 76, 299-309 2022

  • Instability dynamics in gyrogravitating astroclouds with cosmic ray moderation in non-ideal MHD fabric
    P Dutta, PK Karmakar
    Pramana 95 (4), 1-12 2021

  • Nonlinear dynamics of structure formation in protoplanetary disks
    P Sarma, PK Karmakar
    Chinese Journal of Physics 74, 9-19 2021

  • Effect of levitated dust kinetics in the dynamic evolution of inhomogeneous plasma sheath
    A Nag, K Devi, J Paul, PK Karmakar
    Chinese Journal of Physics 73, 213-223 2021

  • A kinetic theory of the pulsational mode of gravitational collapse in star-forming molecular clouds
    D Challam, PK Karmakar

  • Jeans Instability in Nonideal MHD Plasma Clouds With Geometric Curvature Effects
    D Kalita, PK Karmakar
    IEEE Transactions on Plasma Science 49 (7), 2042-2047 2021

  • Adapted instabilities excited in spherical magnetized viscoelastic astroclouds with extreme dust-fugacity moderations
    D Kalita, PK Karmakar
    The European Physical Journal Plus 136 (5), 1-25 2021

  • Astromodal wave dynamics in multifluidic structure-forming cloud complexes
    A Haloi, PK Karmakar
    Pramana 95 (1), 1-12 2021

  • 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

  • A new P (r)-relationship for stellar structures
    R Deb, PK Karmakar
    An introduction to molecular clouds 1, 27-40 2021

  • A new simplistic equation of a macroscopic equilibrium state for degenerate neutron stars
    R Deb, PK Karmakar
    An introduction to molecular clouds 1, 13-26 2021

  • Dynamics of sheath evolution in magnetized charge-fluctuating dusty plasmas
    K Devi, A Nag, J Paul, PK Karmakar
    Chinese Journal of Physics 65, 405-411 2020

  • A physical plasma-based portrayal of living bio-cells
    PK Karmakar
    Anunaad 6 (1), 45-46 2020

  • Analyzing the instability dynamics of spherical complex astroclouds in a magnetized meanfluidic fabric
    D Kalita, PK Karmakar
    Physics of Plasmas 27 (2), 022902 2020

  • Bimodal instability dynamics in nonthermal complex tridust astroclouds towards structure formation
    PK Singha, PK Karmakar
    EPL (Europhysics Letters) 128 (3), 35001 2020

  • Nonlinear nucleus-acoustic waves and possible equivalent conservation laws
    P Das, PK Karmakar
    Advances in Nuclear Physics and Condensed Matter 1, 248-254 2020

  • Evolution of conjugational hybrid mode in partially ionized astroplasmas
    P Dutta, PK Karmakar
    Advances in Nuclear Physics and Condensed Matter 2020, 112-117 2020

  • Gyrokinetic influence on star-forming bimodal cloud stability
    A Haloi, PK Karmakar
    Advances in Nuclear Physics and Condensed Matter 1, 104-111 2020


  • 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: 38

  • 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: 25

  • 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

  • Graphical analysis of electron inertia induced acoustic instability
    PK Karmakar, U Deka, CB Dwivedi
    Physics of plasmas 12 (3), 032105 2005
    Citations: 22

  • Nonlinear stability of pulsational mode of gravitational collapse in self-gravitating hydrostatically bounded dust molecular cloud
    PK Karmakar
    Pramana 76 (6), 945-956 2011
    Citations: 18

  • Nonlinear pulsational eigenmodes of a planar collisional dust molecular cloud with grain-charge fluctuation
    PK Karmakar, B Borah
    The European Physical Journal D 67 (9), 1-14 2013
    Citations: 17

  • 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: 17

  • Nucleus-acoustic waves: Excitation, propagation, and stability
    PK Karmakar, P Das
    Physics of Plasmas 25 (8), 082902 2018
    Citations: 15

  • Viscoelastic pulsational mode
    P Dutta, PK Karmakar
    Astrophysics and Space Science 362 (10.1007/s10509-017-3120-1), 141 (1-12) 2017
    Citations: 14

  • 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: 14

  • Pulsational mode fluctuations and their basic conservation laws
    B Borah, PK Karmakar
    Advances in Space Research 55, 416-427 2015
    Citations: 13

  • Electrostatic streaming instability modes in complex viscoelastic quantum plasmas
    PK Karmakar, HP Goutam
    Physics of Plasmas 23 (, 112121 (1-14) 2016
    Citations: 12

  • A generalized hydrodynamic model for acoustic mode stability in viscoelastic plasma fluid
    B Borah, A Haloi, PK Karmakar
    Astrophysics and Space Science 361 (5), 1-11 2016
    Citations: 12

  • New nonlinear eigenmodes of a self-gravitating spherical charged dust molecular cloud
    PK Karmakar, B Borah
    Physica Scripta 86 (2), 025503 2012
    Citations: 12

  • Response to “Comment on ‘Graphical analysis of electron inertia induced acoustic instability'”[Phys. Plasmas 13, 104701 (2006)]
    PK Karmakar, U Deka, CB Dwivedi
    Physics of Plasmas 13 (10), 104702 2006
    Citations: 12

  • Analytical integrability and physical solutions of equation
    PK Karmakar, CB Dwivedi
    Journal of mathematical physics 47 (3), 032901 2006
    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: 11

  • Global gravito-electrostatic fluctuations in self-gravitating spherical non-uniform charged dust clouds
    PK Karmakar, B Borah
    Astrophysics and Space Science 361 (4), 1-22 2016
    Citations: 11

  • 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: 11

  • Application of inertia-induced excitation theory for nonlinear acoustic modes in colloidal plasma equilibrium flow
    PK Karmakar
    Pramana 68 (4), 631-648 2007
    Citations: 11