- Macrospin in magnetic field: a stochastic thermodynamics approach, on 20th February, 2018 at SINP, Kolkata and on 17th October, 2017 at NTNU, Trondheim, Norway.
- Spin transport under spin torque, on 23rd July, 2014 at Indian Institute of Science (IISc), Bangalore and on 5th March, 2014 at Institute of Physics, Bhubaneswar, India.
- Charge and spin transport through mesoscopic system, on 11th March, 2014 at International Institute of Information Technology, Hyderabad (IIIT-H)
- .Nano-spintronics.: on 16th November, 2009 in STINT workshop on Oxide and Interface Magnetism, NTNU, Trondheim, Norway.
- Renormalization of the dephasing by zero point .fluctuations.: (i) on 26th March, 2009 in DPG meeting (TT44.10), Dresden, Germany, (ii) on 19th May, 2008 at Institutt for fysikk, NTNU, Trondheim, Norway, (iii) on 17th January, 2008 at Saha Institute of Nuclear Physics, Salt Lake, Kolkata, India, (iv) on 11th January, 2008, IIT Kharagpur, Kharagpur, India, (iv) in "Low dimensional nanoscopic systems", HRI, Allahabad, India during 28th January-9th February, 2008 (poster).
- .Anderson orthogonality catastrophe: impact of shell structure in parabolic quantum dot.: (i) on 18th March, 2008, MPIPKS, Dresden, Germany, (ii) on 27th February, 2008 in DPG meeting (TT24.14), Berlin, Germany, (iii) on 7th February, 2008, IIT Kanpur, Kanpur, India, (v) on 21st January, 2008, SNBNCBS, Kolkata, India.
- Conductance of a multi-mode closed ballistic ring: Beyond Landauer and Kubo.: (i) during 9th-13th July, 2007, StatPhys 23, Genova, Italy, (ii) on 4th May, 2007 at IoP, Bhubaneswar, India, (iii) on 24th April, 2007 at SNBNCBS, Kolkata, India, (iv) on 23rd April, 2007 at TCMP Division, Saha Institute of Nuclear Physics, Kolkata, India, (v) on 28th March, 2007 in Annual Meeting of the Deutsche Physikalische Gesellschaft (DPG) (TT18.12), Regensburg, Germany.
- Circulating currents in multi-channel mesoscopic ring.: during 21st - 25th May, 2007 inNanospintronics Design and Realization, MPIPKS, Dresden, Germany.
- Conductance of closed devices.: (i) on 26th July, 2006 at Mesoscopic Systems seminar in MPIPKS, Dresden, Germany, (ii) on 15th May, 2006, Condensed Matter group seminar in the Department of Physics, Ben-Gurion University, Beer Sheva, Israel, (iii) during 15th - 26th August, 2005, Workshop and summer school on Transport in mesoscopic and single-molecule systems, Niels Bohr Institute, University of Copenhagen, Denmark.
- Phase time for tunneling particle.: (as a Theoretical Physics Seminar Circuit (TPSC) speaker) (i) during 20th-25th January, 2005, IoP, Bhubaneswar, India, (ii) during 16th - 19th January, 2005, IIT Kharagpur, Kharagpur, India.
- Quantum current magni.fication in a multi-channel ring.: (i) during 24th May-11th June, 2004, Spring College on Science at the Nanoscale, ICTP, Trieste, Italy (poster & talk), (ii) during 14th-25th June, 2004, Workshop on Quantum Systems out of Equilibrium, ICTP, Trieste, Italy, (iii) during 17th-20th December, 2003 ICONSAT 2003, Hyatt Regency, Kolkata, India.