"Indian efforts: CMS, Belle and Neutrinos", Plenary talk at WHEPP XVI, IIT Hyderabad Dec 14-20, 2025
"CMS Recent Results and Prospects", Plenary talk at India-JINR workshop on particle, nuclear , neutrino physics and astrophysics, NISER, Nov 10-12, 2025
"CMS Physics Results and Upgrade", Plenary talk at RADCOR 2025, Puri, Oct 5-10, 2025
"CMS Detector Upgrades", talk at CMS-DAS School, IIT Hyderabad, June 23-27, 2025
"India CMS Collaboration Activities", Plenary talk at PHANC'25, Puri, March 27-30, 2025
"Status of LHC Experimental Program", Invited talk at Lake Louise Winter Institute, Canada, March 2-8, 2025
"LHC Physics", Plenary talk at ICFHEP, IIT Bhilai, Feb 13-15, 2025
“Results from CMS”, 17th International conference on interconnection between particle physics and cosmology (PPC 2024), IIT Hyderabad, Oct 14-18,2024
“CMS and ATLAS results on flavor spectroscopy”, 16th international conference on heavy quarks and leptons (HQL 2023), TIFR Mumbai, 28 Nov- 2 Dec, 2023
"CMS B-physics”, 12th international conference on new frontiers in physics (ICNFP), Kolymbari, Greece, July 10-23, 2023
"B-Physics Measurements’, Moriond EW Conference, La-Thuile, Italy, March 18-25, 2023
"Indian Contribution to CMS", Frontiers in Particle Physics 2023, IISc, Bangalore, March 10-12, 2023
"Indian Contribution to CMS", IMHEP (International Meeting on HEP), Institute of Physics, India, Feb 16-22, 2023
"B-Physics Highlights’, Kruger International Conference, South Africa, Dec 4-9, 2022
"Indian Contribution to CMS", Workshop on Particle Physics, Puzzles and Promises, ICTS, Bangalore, India, Nov, 2022
"B-physics at CMS and it’s upgrade", Future Flavors: Prospects for Beauty, Charm and Tau Physics, ICTS, Bangalore, India, April 25- May 6, 2022
"New Physics Search in b->sll decays with CMS", talk at the 19th International Conference on B-physics at Frontier Machines (BEAUTY-2020), IMPU, Japan
"LHC Physics”, Lake Louise Winter Institute: Opening talk of the School (summarizing physics results from both the CMS and the ATLAS experiments), Canada, Feb 10-16, 2019
“CMS Highlight Overview”, Lomonosov 2017: Plenary talk in the opening session of the 18th Lomonosov Conference on Elementary Particle Physics, MSU, Russia, August 24-30, 2017
"Rare Beauty Decays from CMS”, KAON 2016: Plenary talk in The International Conference on Kaon Physics, University of Birmingham, UK, September 14-17, 2017
"Rare B-decays with the CMS and ATLAS Experiments”, Moriond EW 2016: Plenary talk in the 51st Rencontres de Moriond EW, La Thuile, Italy, March 12-19, 2016
“Studies of B(s)-> m+m- and its implications for BSM flavor models”, KEK FF 2015: Plenary talk (summarizing results from CMS, ATLAS, and LHCb) in the 5th KEK Flavor Factory workshop, KEK, Japan, October 26-29, 2015
“Heavy Flavor production at 13 TeV”, PIC 2015: Plenary talk in the opening session of the XXXV International Symposium on Physics in Collision, University of Warwick, September 15-19, 2015
“B rare decays”, Quy-Nhon 2014: Plenary talk in the Rencontres du Vietnam: Physics at LHC and beyond, Quy-Nhon, Vietnam, August 10-17, 2014
“CP and Flavor Physics”, CERN-Bangladesh School 2014: Invited Lecture series given at 1st CERN-Bangladesh School on particle physics, Dhaka University, December 15-18, 2014
“Physics of B-mesons”, ICTDHEP 2012 : Invited talk at the International conference on triggering discoveries in high energy physics, September 9-14, University of Jammu, 2014
“MINOS near detector data decomposition and far detector extrapolation”, DPF 2009: Parallel talk in the Meeting of the Division of Particles and Fields of American Physical Society, Wayne State University, USA, July 24-31, 2009
“New Physics Searches at B-factories”, PHENO 2008 : Plenary talk in the International symposium on phenomenology, University of Wisconsin, Madison, USA, April 28-30, 2008
“New physics search in penguin B-decays”, Miami 2007: Plenary talk in a topical conference on elementary particles, astrophysics and cosmology, Fort-Laiderdale, Miami, USA, December 13-18, 2007
“Search for Baryon and Lepton number violation in BaBar”, BLV 2007: Plenary talk at the International workshop on search for Baryon and Lepton number violation, LBNL, Berkeley, USA, September 20-22, 2007
“Tau decays at B-factories”, SUSY 2007: Parallel talk at International Conference on Supersymmetry and Unification of Fundamental Interactions, KIT, Germany, July 16- Aug 01, 2007
“Search for lepton flavor violating tau decays at BaBar”, DPF 2006: 29 Oct- 3 Nov 2006, parallel talk at the Joint meeting of Pacific Region Particle Physics Communities, Hawaii, USA, 29 Oct- 3 Nov 2006
“Searches for D0- antiD0 mixing, Rare Charm and Tau decays”, SUSY 2006: Parallel talk at International Conference on Supersymmetry and Fundamental Interaction, University of California, Irvine, June 12-17, 2006
“Lepton flavor violation in Tau decays”, APS 2006: Parallel talk at American Physical Society, Dallas (USA), April 22-25, 2006
“BaBar muon detector upgrade”, ALCPG and ILC 2005: Parallel talk at International Linear Collider Physics and Detector Workshop and Second ILC accelerator workshop, Snowmass, Colorado, USA, August 14-27, 2005
“Rare Hadronic B-decays at Belle”, WIN 2003: Parallel talk at the 19th International Workshop on Weak Interaction and Neutrinos, Lake Geneva, Wisconsin, USA, October 6-11, 2003
“ and measurement of CKM angle gamma", Moriond-EW 2003: Plenary talk at XXXVIII Rencontres de Moriond Electroweak Interactions and Unified Theories, Les Arcs, March 15-22, 2003
“B-> DK and prospects of measuring CKM angle gamma”, DPF 2002: Parallel talk at the meeting of the Division of Particles and Fields of American Physical Society, Williamsburg, Virginia, USA, May 24-28, 2002
“Observation of B->DK at Belle”, APS 2002: Parallel talk at the meeting of American Physical Society, Albuquerque, NM, USA, April 20-23, 2002
“Understanding the Universe", Maharshi College, Bhubaneswar, Sept 6, 2024
LHC Physics talk at NIT Rourkela research scholar week, May 13, 2023
“The Universe in Collision”, Invited seminar given at Inter University Accelerator Center (IUAC), New Delhi, 23 August 2019.
“LHC: The Physics and Future Prospects”, Departmental Colloquium given at the School of Physical Sciences, NISER, 18 Oct 2017.
“Quantum Entanglement: Weird still beautiful”, Departmental seminar given at the School of Physical Sciences, NISER, 7th April 2014.
“Neutrino Oscillation and Future”, Departmental seminar given at the School of Physics Sciences, NISER, 21 November 2011.
“LHC Physics”, Invited talk at the Alumni meet at Institute of Physics, Bhubaneswar, 4 September 2011.
“Matter and Anti-matter Asymmetry and CP violation”, Departmental seminar given at the School of Physical Sciences, NISER, 29 March 2011.
“Introducing LHC”, Departmental Seminar given at the Physics Department, IIT Kanpur, 28th January 2011.
“Introducing the Large Hadron Collider”, Departmental seminar given at the Department of Physics, IIT Kharagpur, 6 April 2010.
“Introducing the Large Hadron Collider”, Departmental seminar given at the Department of Physics, IISER Mohali, 30 April 2010
“Introducing the Large Hadron Collider”, Departmental seminar given at the School of Physical Sciences, 24 March 2010
“Matter Antimatter asymmetry, CP violation and beyond”, Department of Physics, Utkal University, Bhubaneswar, August 2008.
“Matter Antimatter asymmetry, CP violation and beyond”, Institute of Physics, Bhubaneswar, August 2008.
“Matter Antimatter asymmetry, CP violation and beyond”, Departmental seminar at Department of Physics, IISER Pune, July 2008.
“New Physics Search in tau decays” Departmental Seminar at TIFR, Mumbai, July 2008
“New Physics Search in tau decays”, Departmental Seminar at the IISER Kolkata, July 2008.
“New Physics Search in Tau decays”, High Energy Physics Seminar at the Physics Department, University of Wisconsin-Madison, March 2008
“Measuring CKM angle gamma at Belle”, Seminar given at the Department of Physics, MIT, USA, Nov 2003.
“Measuring CKM angle gamma at Belle”, Seminar given at the Department of Physics, Harvard University, USA, Nov 2003.
“Measuring CKM angle gamma at Belle”, Seminar given at the Department of Physics, Princeton University, USA, Nov 2003.
“Measuring CKM angle gamma at Belle”, Seminar given at the Department of Physics, SLAC, USA, Nov 2003.
“Towards measuring CKM angle gamma”, Seminar given at the Institute of Physics, Bhubaneswar, Jan 2003.
“Understanding Universe: The two biggest discoveries on 21st Century”, Invited Lecture at 20th Odisha Bigyan ‘O’ Paribesh Congress, NISER, 18 November 2018
“The Universe in Collision”, Invited Lecture at 35th Convention of Orissa Physical Society, BJB College, Bhubaneswar, 10-11 February 2018
“Introducing LHC”, Invited speaker (Chief Guest) at National Seminar on Recent Trends in Science, Technology and Management, GIET Engineering College, Bhubaneswar, 16 March 2018
“Early Universe”, Invited speaker at UGC-DRS seminar on Current Trends in Physics, Physics Dept, Utkal University, Bhubaneswar, 31 March 2017
“The Universe in Collision”, Invited Lecture at 20th Odisha Bigyan ‘O’ Paribesh Congress, OUAT, Bhubaneswar, 4 December 2016
“CP violation experiment at Large Hadron Collider”, Invited speaker at National seminar on Current Trends in Physics, Physics Dept, Utkal University, Bhubaneswar, 3 January 2015
“Early Universe”, Hon’ble resource person for the seminar on Flood lightning forecasting and prevention disaster, Physics Dept, Marshaghai Collge, Kendarapara, January 2020
“The universe in collision”, Resource person at National seminar on in Physics, Physics Dept, Chandol College, Kendrapara, 13 March 2019
“Introducing LHC”, Invited speaker at UGC-DRS seminar on aspects of quantum cosmology and early universe, Physics Dept, Utkal University, Bhubaneswar, 13 March 2010
“Einstein’s last symphony: Listening for Gravitational waves” at National Science Day talk to School children and parents on 23rd April 2016, organized by NISER.
“Higgs and evolution of early Universe”, Nobel Lecture to School Children and Parents, 7th Feb 2013, organized by NISER.
“Early Universe” Chief Speaker in the Inaugural function at the district level Exhibition and Project Competition, Kendrapara, December 12, 2019
NCERT-NTS awardees nurturance Outreach Program: “Understanding Universe: Two Biggest Discoveries of 21st Century”, talk to NTS awardees on 9th Dec 2019, organized by NCERT.