ENLIGHTENMENT TO ERFECTION
Department of Physics

Dr. Bikash Chandra Paul

Dr. Bikash Chandra Paul


M. Sc., Ph. D.

Professor & Head

Members of Learned Societies: Life Member of Indian Association of General Relativity and Gravitation  (IAGRG), Council Member of IAGRG (2010-2014)


Contact Addresses:

Phone +91-9434539881 (M)
Mailing Address Prof. B. C. Paul, Department of Physicss, University of North Bengal, P.O.- NBU, Dist- Darjeeling, West Bengal, Pin -734013, India.
e-Mail bcpaul@associates.iucaa.in , bc_paul@hotmail.com

Subject specialization: Theoretical Physics (Astrophysics & Cosmology), Electronics &RadioPhysics (in M. Sc).

Areas of Research Interest:

  1. Cosmology : Relativistic Cosmology, Quantum Cosmology, Dark matter, PBH Dark energy, Modified Gravity, Emergent Universe Model, Wormholes;
  2. Astrophysics :  Relativistic models of Neutron Star, Black Holes (BH) Data Analysis :X-ray Pulsars

 

No. of Ph.D. students:    (a) Supervised: 06      (b) Ongoing: 03

No. of M.Phil. students: (a) Supervised: Nil       (b) Ongoing: Nil.

No. of Publications:        (a) Journal(s) : 81     ( b) Book(s) : 01           (c) Book chapter(s): 05           (d) Others: 05

Achievement & Awards:

Professional Experiences:

Administrative Experiences:

Other information:

Research Projects:

Selective List of Publications:

 

S. No.

Author(s)

Title

Name of Journal

Volume

Page

Year

1.

B. C. Paul, D. P. Datta, S. Mukherjee

Chaotic Inflationary Scenario in an Anisotropic Universe

Mod. Phys. Letts. A

1

149

1986

2.

B. C. Paul, D. P. Datta, S. Mukherjee

Early Universe in Modified Starobinsky Model

Mod. Phys. Letts. A

3

843

1988

3.

B. C. Paul, S. Mukherjee

Higher Dimensional Cosmology with Gauss-Bonnet terms

Physics Teacher

31

183

1989

4.

B. C. Paul

AmaderViswaBramhanda

NBU Physics alumni Association Souvenior

 

 

1991

5.

B. C. Paul

The Inflationary Models of the Early Universe

North Bengal University (Ph. D.)

Thesis

 

1990

6.

B. C. Paul, S. Mukherjee

Higher Dimensional Cosmology with Gauss-Bonnet terms and the  Cosmological Constant Problem

Phys. Rev. D

42

2595

1990

7.

S. Mukherjee, B. C. Paul, A. Kshirsagar, N. Dadhich

Gravitational Instantons with Scalar field

Phys. Rev. D

45

2772

1992

8

B. C. Paul, S. Mukherjee, A. Beesham

Wormholes in Higher Dimensions with Gauss-Bonnet terms

Pramana, A Journal of Physics

44

133

1995

9.

B. C. Paul, G. P. Singh
A. Beesham, S. Mukherjee

Primordial Black Hole Pair Creation in R^2 - theory

Procee. Of Hanno Rund Conference, Ed.: S. D. Maharaj

 

80-84

1996

10.

B. C. Paul, A. Beesham

Higher Derivative theory with Viscosity

8th Marcel Grossmann Meeting (June 22-27, 1997)-ed. T. Piran and R. Ruffini

World Scientific

 

1997

11.

S. Mukherjee, B. C. Paul, N. Dadhich

General Solutions for Relativistic Star

Class. & Quantum Grav.

14

3475

1997

12.

B. C. Paul, S. Mukherjee, A. Beesham

Qualitative Analysis of Causal cosmological Models in ( 1 + 1 ) Dimensions

University of Zululand Internal Report

 

 

1998

13.

B. C. Paul, G. P. Singh
A. Beesham, S. Mukherjee

Primordial Black Hole Pair Creation in R^2- theory

Mod. Phys. Lett. D

13

2289

1998

14

B. C. Paul, S. Mukherjee, A. Beesham

Viscous Cosmological Models in (1 + 1) Dimensions

Int. J. Mod. Phys. D

7

567

1998

15.

B. C. Paul, S. Mukherjee, A. Beesham

Higher Derivative theory with Viscosity

Int. J. Mod. Phys. D

7

499

1998

16.

B. C. Paul, S. Mukherjee, A. Beesham

Dissipative Cosmology in (1 + 1 ) Dimensions

NBU Science & Technology Review

10

44-53

1999

17.

B. C. Paul

Exact Scalar  field  Cosmologies in a Higher Derivative theory

Pramana, A Journal of Physics

53

853

1999

18

B. C. Paul, S. Mukherjee

Open Inflation in Higher Derivative Theory

in  THE UNIVERSE : Visions and Perspectives - eds. N. K. Dadhich  and A. K. Kembhavi

 

Chap-23 

253-260

2000

19.

B. C. Paul

Probability for Primordial Black Holes  in a Higher Dimensional Universe

 Phys. Rev. D

61

024032

2000

20.

B. C. Paul

Viscous Cosmologies with extra dimensions

Phys. Rev. D

64

027302

2001

21.

B. C. Paul

On the mass of a uniform density star in Higher Dimensions

Classical and Quantum Gravity  

18

2637

2001

22.

S. Chakraborty, B. C. Paul

Inflation in Bianchi models and Cosmic no-hair theorem

Physical Review D 

64

127502

2001

23.

B. C. Paul

Inflationary Cosmologies in an anisotropic Brane world 

Phys. Rev. D

64

124001

2001

24.

B. C. Paul , S. Mukherjee and R. Tavakol

Instantons in Higher Derivative theories

Procee. IAU 8th Asian Pacific Regional Meeting eds. S. Tkeuchi,  J Hearnshu, T. Hanwa

Vol : II

313

2002

25.

B. C. Paul, A. Saha

Probability for Primordial black holes in Higher derivative theories

Int. J. Mod. Phys. D

11

493

2002

26.

B. C. Paul, S. Mukherjee, R. Tavakol

Singular Instantons in higher derivative theories

Phys. Rev. D

65

064020

2002

27.

B. C. Paul, S. Mukherjee

Gravitational Instantons – Recent developments

Mod. Phys. Letts. A

17

1123

2002

28.

B. C. Paul, S. Chakraborty

Inflaton field and Primordial black hole

Int. J. Mod. Phys. D

11

1435

2002

29.

B. C. Paul

Inflation in Bianchi Models and the Cosmic no hair theorem in Brane world

Phys. Rev. D

66

124019

2002

30.

B. C. Paul

Chaotic Inflationary Universe on Brane

Phys. Rev. D

68

127501

2003

31.

B. C. Paul, M. Sami

Note on Inflation with a Tachyonic rolling on the Gauss-Bonnet Brane

Phys. Rev. D

70

027301

2004

32.

B. C. Paul

Relativistic Star solution in Higher dimensions

Int. J. Mod. Phys. D

13

229

2004

33.

S. Mukherjee, B. C. Paul, S. D. Maharaj, A. Beesham

Emergent Universe in Starobinsky Model

ArXiv: gr-qc/0506103

 

 

2005

34.

B. C. Paul

Chaotic Inflationary Scenario On Brane

Procee. International Conference on Contem. Issues in Nuclear and Particle Physics, Jadavpur University

Feb 4-7, 2005

 

2005

35.

B. C. Paul, A. Beesham

Power-law Inflation and the Cosmic no hair theorem in Brane world

Int. J. Mod. Phys. D

14

893

2005

36.

B. C. Paul, R. Tikekar

A Core Envelope model of  Compact stars

Gravitation  &   Cosmology  

11

 244

2005

37.

D. Paul, B. C. Paul

Probability for a Primordial Black hole Pair in 1/R-Gravity

Phys. Rev. D

72

064012

2005

38.

B. C. Paul,Dilip Paul

Inflationary Universe with Tachyon field

Int. J. Mod. Phys. D 

14

1831

2005

39.

B. C. Paul

An Overview of Cosmology

Proceeding of UGC Sponsored State Level Seminar on IYP : Approaches & Understanding
 March 26-27,2006

 

 

2006

40.

S. Mukherjee, B. C. Paul, N. K. Dadhich, S. D. MaharajA. Beesham,

Emergent Universe with Exotic Matter

Class and Quantum Grav.

23

6927

2006

41.

B. C. Paul

Chaotic Inflationary Universe on Brane

Procee. Of  IAGRG (2006)-ed. R. Bali.

 

 

2006

42.

B. C. Paul, D. Paul

Probability of Primordial Black Hole  Pair Creation in a Modified Gravitational theory

Physical Review D

74

084015

2006

43.

P. S. Debnath, B. C. Paul

Cosmological Models with variable Gravitational and Cosmological constant in  R^2-Gravity

 Int. J. Mod. Phys. D

15

189

2006

44.

B C Paul, P. Thakur,
A. Saha

Holographic Dark Energy Models with Generalized Chaplygin Gas

ICTP :Report IC/IR/2007/006.

 

 

2007

45.

P. S. Debnath, B. C. Paul, A. Beesham

Viscous cosmologies with variable Lambda in higher derivative gravity                                                                                                                                                                                                                           

Phys. Rev. D

 76

123505

2007

46.

B. C. Paul, P. Thakur,
A. Saha

Modified Chaplygin Gas as a Scalar field and Holographic Dark Energy Model

 arXive:0809.3491

 

 

2008

47.

B. C. Paul

Effect of Higher Dimensions on Compact Stars

Procee.  Workshop on Physics of  the Warped Extra Dimensions-ed.  
S. Kar

 

155-159

 

2008

48.

B. C. Paul, A. Saha, S. Ghose

Probability for Primordial Black Holes in  a Multidimensional Universe with non-linear   scalar   curvature terms

Phys. Rev. D

78

084007

2008

49.

B. C. Paul,Dilip Paul

Anisotropic Bianchi-I Universe with Phantom field

PRAMANA-Journal of Physics,

71

1247

2008

50.

D.Paul, B.C. Paul, X. H. Meng

Inflation with Hyperbolic Potential in the Brane-world model

Pramana Journal of  Physics

72

903-914.

2009

51.

B. C. Paul, P. S. Debnath, S. Ghose

Accelerating Universe in Modified Theories of Gravity

Phys. Rev. D

79

083534      

2009

52.

P. Thakur, S. Ghose, B. C. Paul

Modified Chaplygin Gas and constraints on its B parameter from Cold Dark Matter and Unified Dark Matter Energy cosmological Models

Mon. Not. Roy. Astron.   Soc.  (MNRAS)

397

1935-1939

2009

53.

P. K. Chattopadhyay, B. C. Paul

Relativistic Star Solutions in Higher Dimensional Pseudo-spheroidal Space-time

 Pramana, Journal of  Physics 

74

 513

2010

54.

B. C. Paul, S. Ghose

Emergent Universe Scenario in the Einstein-Gauss-Bonnet Gravity with Dilaton

Gen. Rel. Grav. 

42

795

2010

55.

B. C. Paul, P. Thakur, S. Ghose

Constraints on Exotic Matter needed for An Emergent Universe

Mon. Not. Roy. Astron. Soc.

407

415-419.

2010

56.

B. C. Paul, A. Saha, 

Gravitational Instantons in R4 Gravity for  Open Inflation

Class. Quantum Grav.

 27

215004

2010

57.

S. Ghose, B. C. Paul

On the Viability of some Emergent universe models

Exploring the Cosmos - ed. A. Bhadra, LAMBERT Academic Pub, 2011, (ISBN : 978-3-8443-9165-7, 2011)

 

 

2011

58.

B. C. Paul

Holographic Dark Energy Models with Chaplygin Gas

Cosmology/Book 1 ISBN 978-953-307-423-8 (2011)

Chapter-V

 

2011

59.

B.  C.  Paul, S. Ghose, P. Thakur

Emergent Universe from A composition of Matter, Exotic Matter and Dark Energy

Monthly Notice of the Royal Astronomical Society

 413

686-690 

2011

60.

B.C. Paul, P. K. Chattopadhyay, S. Karmakar, R. Tikekar,  

Relativistic Strange Star with Anisotropy

Mod. Phys. Lett. A

26  

575-587

2011

61.

B C Paul, P. K. Chattopahyay

Relativistic Anisotropic Strange Stars in Pseudo spheroidal space-time

11th APRIM, 2011 NARIT Conference Series Vol. 1 eds. S. Komonjinda, Y. Kovalev, S. Ruffolo

Vol-1

258-264

2012

62.

P. K. Chattopahyay, B. C. Paul

Relativistic Strange Stars with anisotropy and B-parameter in Pseudo-spheroidal
Space-Time

Neutron Stars and Pulsars : Challenges
&Opportunities after 80 years, Procee. IAU symposium No. 291 (2012)

291

362-364

2012

63.

B. C.  Paul, P. Thakur, A. Saha

Modified Chaplygin Gas in Horava-Lifshitz Gravity and constraints on its B –   parameter

Phys. Rev. D

85

024039

2012

64.

P. K. Chattopadhyay, Rumi Deb,B. C. Paul

Relativistic Solution for a Class of  Static Compact Charged Star in Pseudo Spheroidal space-time

Int. J. Mod. Phys. D

21

1250071

2012

65.

Rumi Deb, B. C. Paul, R. Tikekar

 Relativistic Models of A Class of Compact Objects

Pramana, J of Physics

79

211

2012

66.

S.  Ghose, P. Thakur, B. C. Paul 

Observational Constraints on the Model Parameters of a Class of Emergent Universe    

Monthly Notice of the Royal Astronomical Society (MNRAS)   .

421

20-24

2012

67.

B. C. Paul , P. Thakur, M. M. Verma

Observational Constraints on Modified Chaplygin Gas in Horava-Lifshitz Gravity with dark radiation

Pramana J. Physics

81 

691-718

2013

68.

P. Pradhan, C. Maitra, Biswajit  Paul, B. C. Paul

Revisiting SWJ2000.6+3210 : A persistent Be X-ray pulsar

Mon. Not. Roy. Astron. Soc.

436

945-952

2013

69.

B. C. Paul , P. Thakur

Observational Constraints on Modified Chaplygin Gas from Cosmic Growth

Jour. Cosmo. Astropart. Phys. (JCAP)

11

052

2013

70.

Bikash Chandra Paul, Rumi Deb

Relativistic solutions of anisotropic compact objects

Astrophys. Space Sci. 

354

421-430

2014

71.

S. Ghose, A. Saha,  B. C. Paul

Holographic Dark  Energy with Generalized Chaplygin Gas in Higher Dimensions

International Journal of  Modern Physics D

 23

1450015

2014

72.

R. Kar, T. Goswami, B. C. Paul, A. Misra

On Magnon mediated Cooper pair formation in Ferromagnetic Superconductors

AIP Advances

4

087126

2014

73.

PragatiPradhan, C. Maitra, BiswajitPaul, Nazma Islam, B. C. Paul

Variations in the Pulsation and spectral characteristics of OAO 1657-415

Monthly Notice of the Royal Astronomical Society (MNRAS)

442

2691-2700

2014

74.

B. C. Paul

Dark Matter and Dark Energy in the Universe

Bibechana

11

8-16

2014

75.

P. K. Chattopadhyay, R. Deb, B C Paul

Relativistic Charged Star Solutions in Higher Dimensions

International J.  Theor. Physics

 53

1666 - 1684

2014

76.

B. C. Paul, P. K. Chattopadhyay, S. Karmakar

Relativistic anisotropic star and its maximum mass in higher dimensions

 

Astrophys. Space. Sci.

356

327- 
337

2015

77.

P. Pradhan, B. Paul, H. Raichur, B. C. Paul

Variability of pulse profile of a rotation powered pulsar PSR B1509-58

Non-linear Dynamics and its   application, published by Book Center
 (ISBN:978-81-921612-6-6)

 

240-247

2015

78.

PragatiPradhan, Biswajit Paul, HarshaRaichur, B.C Paul

Variations of the Harmonic Components of the X-ray Pulse profile of PSR B1509-58

Research in Astronomy & Astrophysics

15

28-36

2015

79.

D. Panigrahi, B. C. Paul,
S. Chatterjee

Constraining Modified Chaplygin Gas Parameters

Gravitation and Cosmology,

21

 83–92

2015

80.

UjjalDebnath , Bikash Chandra Paul

 Evolution of primordial black hole in f (T ) gravity with modified Chaplygin gas

Astrophys. Space Sci.

355

147–153

2015

81.

B. C. Paul, A. S. Majumdar

Emergent Universe with Interacting fluids and Generalized Second Law of
Thermodynamics

Classical and Quantum Gravity 

32

115001

2015

82.

PragatiPradhan, Biswajit Paul, B. C. Paul, Enrico  Bozzo, Tomaso M. Belloni

Is 4U 0114+65 an Eclipsing HMXB ?

Mon. Not. Roy. Astron. Soc.
Doi:10.1093/mnras/stv2276

accepted

 

2015

83.

B. C. Paul

An Introduction to Astronomical Data Analysis

Edited Book : Scholars’s Press
ISBN 978-3-639-85990-4

1-177

1-177

2015

84.

B. C. Paul, S. Ghosh

Estimation of Observational Constraints of the parameters in Emergent Universe Model

An Introduction to Astronomical Data Analysis : ed.- B. C. Paul

Chap-5

96-114

2015

85.

B. C. Paul, P. Thakur

Observational Constraints on Chaplygin Gas: A Review

An Introduction to Astronomical Data Analysis: ed. -B. C. Paul

Chap-7

149-177

2015

86.

P. K. Chattopadhyay, B. C. Paul

Density dependent B parameter of relativistic stars with anisotropy in Pseudo-spheroidal spacetime

 Astrophys. Space Sci. (2016)

accepted

 

2016

87.

S. Das, R. Sharma, B. C. Paul, R. Deb

Dissipative Gravitational Collapse of an (an)isotropic Star

Astrophys. & Space Sci.

361

1

2016

88.

P. S. Debnath, B. C. Paul

Viscous Cosmologies with Modified Chaplygin Gas

Int. Journal of Applied Physics (ISSN 2350-0301)

3

Issue:2

2016

 
Popular Science Lecture/Article :
  1. On Stellar Evolution and on Solar Eclipse (August 1999) at North Bengal Science Centre, Organised by NBSC Siliguri on 11.8.99.
  2. AmaderViswaBramhanda      – B. C. Paul, NBU Physics Alumni Association Souvenior 1991.
  3. 50 Years of Space Exploration     - Matigara Science Centre,Siliguri (Oct. 4, 2007).
  4. Mystery of the Universe and LHC  - Matigara Science Centre (Dec   , 2008)
  5. ViswaBramhanda O LHC -  SuryaSenMahaVidyalaya ,Siliguri (Dec 19, 2008)
  6. On Non-Conventional Energy Sources – Nature from Crisis to cure at ABN Seal College, (March 8-9, 2008)
  7. Satellite Communication : A giant leap for mankind – NBSC, Siliguri (16.2.2010)
  8. Past and Present of Indian Astronomy  -at North Bengal Science Centre, Matigara on Feb. 29, 2012
  9. Past and Present of Indian Astronomy- OP at UGC HRDC, NBU (2013,2014, 2015)
  10. MYSTERY Of the universe & GOD PARTCLE, Don Bosco school, Siliguri (Aug   07, 2015)
  11. Why HIGG’S BOSON Or GOD PARTCLE?   - Physics Departmentt, Bagdogra College on Dec. 03,2015.
  12. Space Exploration in India – OP UGC, HRDC, NBU 24 Aug, 2015
  13. Counselling : Need of the Hours – Lecture at UGC HRDC, NBU  on Feb. 04,2016
  14. Gravitational Wave-A new Window in Astronomy - Siliguri Institute Of Technology (SIT), Sukna, Post National Science-Day Lecture on March 17,2016.

 

Invited Talks Presented :

15. Higher Dimensional Cosmology with Gauss-Bonnet terms and the Cosmological Constant Problem -  at the University of Durban, SOUTH AFRICA , (1996).

16. Dissipative Cosmology in (1 + 1 ) Dimensions - at the NBU-IUCAA  Workshop on  Inhomogeneous Cosmological Models and Seminar on Conceptual Problems in  Relativity & Cosmology at NBU (Nov 14-18, 1996).

17. Gravitational Instanton with scalar field – at the XVI th IAGRG Conference held atSardar Patel University, Gujarat ( Dec 10-11, 1991).

18. Cosmology in Higher Dimensions – at Centre for Theoretical Studies at IIT, Kharagpur ( Feb 20, 2001)

19. Cosmological Constant Problem – at Introductory School on Astronomy & Astrophysics  held at Siliguri College, Siliguri (Nov. 16-20, 2002).

20. Compact Stars in Higher Dimensions- Seminar on Compact Star and Quark Gluon Plasma at NBU (18 August 2003).

21. Tachyonic Potential in Higher Derivative Theories- Workshop on Field Theoretic Aspects of Gravity (FTAG-IV) held at  Pelling ( March 2-6, 2004).

22. On Dark Matter- Zululand University, South Africa (June 22, 2004).

23.Compact Stars in higher dimensions – Univ. of Kwa-Zulu Natal, Durban (June 25, 2004).

24. Emergent Universe Scenario - Workshop on Strings and Cosmology at ITP and KITPC, Peoples Republic of China (Nov. 13, 2007).

Papers Presented in Seminar :

25.   Inflationary Universe Scenario in an Anisotropic Kantowski-Sachs Model – UGC National Seminar on Transport problem & Cosmology at  Department of Mathematics, NBU ( Oct 7-11,1985).
26.   Chaotic Inflationary Scenario in an Anisotropic Universe – IPS National Symposium on Particle Physics & Cosmology, Abs. No. 23 ( page 31-33) ( Mar 10- 13, 1986) at  IACS, Jadavpur.
27.    Anisotropy in the Starobinsky Inflationary Scenario Procee. Of VIII th HEP symposium TF-1, p-41, Vol.I( Nov. 11-17, 1986) held at  SINP, Calcutta.
28.    Higher Dimensional Cosmology with Gauss-Bonnet terms XV th IAGRG Coonference and National Seminar on Quantum Gravity & Cosmology, Abs. No. EU2 ( p-12) ( Nov. 4-7, 1989 ) at NBU.
29.   Wormholes with Gauss-Bonnet terms in a Higher Dimensional theory – XVI th Conference of IAGRG, Abs. No. 20 ( Dec 10-11, 1991) at Sardar Patel University, Gujarat.
30.   Wormholes in Higher Dimensions With Gauss-Bonnet terms Procee.of the Xth DAE High Energy Physics Symposium, Abs. No. T8, (p-114) (Dec 26-31, 1992) at TIFR, Bombay.
31.   Primordial Black Holes in Higher Derivative gravity -Workshop on Inhomogeneous   Cosmological Models held at NBU ( Dec 14-18,  1996).
32.   Causal Thermodynamics in Mann’s theory GR-15, Abs. No. 67 (p-133) IUCAA, Pune (Dec 16-21, 1997).
33.    Solution for a class of Spherically symmetric Relativistic Star;   - GR-15, Abs. No. 23 (p -153) IUCAA, Pune (Dec 16-21, 1997).
34. Higher Derivative theory with Viscosity - GR-15, Abs. No. 16 (p:186-187) IUCAA, Pune (Dec 16-21, 1997).
35.  An overview on Higher Dimensional Cosmology with Gauss-Bonnet terms and the Cosmological  Constant Problem -  Invited talk presented at the Orientation Meeting on Exact Solutions ,  D D U Gorakhpur University, Gorakhpur ( Jan 18-19, 1999).
36.  Quantum Creation of Open Universe, B. C. Paul and S. Mukherjee,Procee. of  ICGC  held at IIT, Kharagpur (Mentioned in  Pramana 55 (2000) 606.
37. Probability of Primordial black holes pair creation in the universe ( D = 4, D > 4) Workshop on Topic in General Relativity at IUCAA, Pune ( Oct. 12-20, 2000).
38. Primordial black holes pair in higher dimensional universe – Conceptual Issues in Relativity, Cosmology and Astrophysics ( Mar 28-30, 2001 ),  NBU  
39. Quantum creation of open universe Regional Workshop on General Relativity, Kalyani University ( Nov 21-22, 2001).
40. Singular Instantons in Higher derivative theories IAU 8th Asian Pacific regional Meeting at  National Science Centre, Tokyo, Japan   (July  2- 5,   2002).
41. Cosmic No hair theorm and Brane world – IAGRG Meeting held at IUCAA (Dec 10-14, 2002).
42. Chaotic Inflationary Universe in a brane world model – Vth International Conference on Gravitation and Cosmology (ICGC-2004) (Jan 5-10, 2004) at Kochi, Kerala.
43. Brane and Chaotic Inflationary Universe Scenario 23rd Conf.Of IAGRG and Symp. On Recent Trends in General Relativity,  Cosmology   and Astrophysics (Dec. 7-10, 2004) at Rajasthan University, Rajasthan.
44. Probability of primordial black hole pair creation in modified gravity - Physics in the trails of Einstein (Nov. 21-22, 2005) SINP, Kolkata.
45. Chaotic Inflationary Scenario OnBrane -  International Conference on Contem. Issues in Nuclear and Particle Physics (Feb 4-7, 2005) at Jadavpur University, Kolkata.
46. Chaotic Inflationary Universe on Brane - Talk presented at 22nd IAP Colloquium : Inflation+25 years at Institut d’Astrophysique de Paris, France (June 26-30, 2006).
47.  On Holographic Dark Energy Models -ICGC at IUCAA,Pune (Dec 17-21, 2007).
48. Emergent Universe Scenario in the Einstein-Gauss-Bonnet Gravity with Dilaton -25th IAGRG at SINP Kolkata ( Jan 28-31, 2008)
49. Probability for Primordial Black Holes in Multidimensional Universe with non-linear scalar  curvature terms -   25th IAGRG at SINP Kolkata ( Jan 28-31, 2008).
50. Emergent Universe : Theory and Observations – Workshop on Astronomy :Theory Observations and Interpretation (April 5-9, 2010) at NBU
51.  Lecture-1: Basic Cosmology, Lecture-2: Dark Matter and Dark energy in the School on Recent Advances in Cosmology at NBU (Feb. 21-26, 2011)
52. On the viability of some Emergent Universe models, S. Ghose and B. C. Paul, HECRC Seminar on Relativistic Astrophysics & Astroparticle  Physics
53.  Emergent Universe : Theory and Observations – Invited Lecture at IISc, Bangalore (April 27, 2010),  AAPCOS at Hotel Mayfaire (SINP) on March 7-12, 2012.
54. Womens in Science and Technology- Refresher course in Women and social Justice (May 2-22,2013) at NBU UGC ASC May 10, 2013.
55. Relativistic Models of Compact Objects with Charge-14.01.2015, CTP, JamiaMillia Islamia, New Delhi
56.  Creation of Emergent Universe with Wormhole – oral presentation in 28th Texas Symposium  on Relativistic Astrophysics (Dec. 13-18, 2015) at Geneva,  Switzerland