Academic Qualifications: 1996 S. No. Degree Institution Year 1. B.Sc. Visva Bharti University 1988 2. M.Sc. Visva Bharati University 1990 3. Ph. D. I.I.T, Kanpur 1996 urrent Research Project: S. No. Name of the Project Duration Source of Funding Amount of Funding (Rs) 1. "Generalized BRST transformation and its applications in gauge theories" (P.I) 2009- 2012 DST, New Delhi 9.36 lacs Any additional information: Member of the Editorial Board of International Journal of Physics and Mathematical Science: 2010-present JSPS postdoctoral fellowship for the years 2001-2003. ICSC World Laboratory (Lausanne, Switzerland) award in theoretical physics in memory of SUBRAHMANYAN CHANDRASEKHAR, in 1998 . Visiting Associate of S.N. Bose National Center for Basic Sciences Merit Scholarship for the years 1983 to 1990. University Scholarship for the years 1986 to 1990. Award for University rank # 1 in B. Sc. in 1988. Award for University rank # 1 in M. Sc. in 1990. Positions held: Associate Professor, Banaras Hindu University, Varanasi, 2007---present Reader, Banaras Hindu University, Varanasi, 2004---2007 Lecturer, Maulana Azad College, Kolkata, 2002---2004 JSPS Fellow, Tokyo, Japan, 2001---2002 Senior Research Associate, SNBose Center, Kolkata, 2000---2001 Research Associate, SINP, Kolkata 1997---2000 Postdoctoral fellow, IOP, Bhubaneswar, 1995-1997. Visits abroad for professional work: Department of Physics, Helsinki University, FINLAND.Sept 01 to 15, 2012. For research Collaboration. APC, Paris ,FRANCE. During August 26 -31, 2012, To attend an International Conference On Quantum Physics with Non-Hermitian operators. MPIPKS, Dresden, GERMANY. From June 15 -26, 2011. To participate and give an invited talk in the International Conference On Quantum Physics with Non-Hermitian operators. Max Planck Institute for gravitational physics, Golm, Potsdam, GERMANY . From June 01 to June 15, 2011, For research Collaboration. Ochanomizu University, Tokyo, JAPAN, July 25, 2001 to August 2002. JSPS postdoctoral position Atomic Energy Research Institute, Nihon University, Tokyo, JAPAN, October 10, 1998 to November 11, 1998. For Research collaborations. ICTP, Trieste, ITALY June 10, 1996 to June 28, 1996. To attend Summer School in HEP and for research collaborations. CERN, Geneva, SWITZERLAND, June 29 ,1996 to July 07,1996. For research collaborations.

In Quantum Field Theory. We work on various generalization of BRST transformations and their implications in the study of different gauge field theoretic models. The generalized BRST [with finite field dependent parameter] connects the generating functional corresponding to two different effective gauge theories. Hence, such transformations are very useful to study the systems relating two effective theories and already have found a number of applications in quantum field theory. These transformations can also be used to solve many of the long outstanding problems in quantum field theory. Apart from these we also work in superspace formulation of gauge theories and non-commutative field theories. In Quantum Mechanics Non-Hermitian extension of usual quantum theories has become a very interesting topic in frontier research over the last decade. Non-Hermitian systems with certain unbroken symmetries can give rise to fully consistent [ real spectrum, unitary time evolution with probabilistic interpretation ] quantum theory in an appropriate Hilbert Space. Such systems have been investigated extensively recently and found many applications in quantum mechanics, quantum field theories and even in classical mechanics. We are investigating various aspects of such theories. In Astro-particle Physics. We are interested in different properties of Pulsars and strange stars. In particular we are studying the origin of pulsar kick velocity and aspect of pulsar glitch.