Conferences and Seminars in India
Jawaharlal Nehru University, New Delhi.
  • “Roman and Indo-Roman coins from Sri Lanka. New evidence from the Sigiriya excavations on the monetary pattern of ancient Sri Lanka”, Centre for Historical Studies, 16th January 1991.
  • “The destruction of the Cultural heritage of Afghanistan”, Centre for Historical Studies, 9th January 2002.
National Museum, Allahabad
  •  “A new approach to Indo-Greek numismatics”, 24th January 1991.
  •  “Roman and Indo-Roman coins from Sri Lanka”, 25th January 1991.
State Museum, Lucknow,
  • “A new approach to Indo-Greek numismatics”, 6th February 1991.
  • “Roman and Indo-Roman coins from Sri Lanka”, 7th February 1991.
Deccan College, Postgraduate and Research Institute, Pune
  •  “Minting techniques in the West and the East”, 3rd January 1992.
Institute of Archaeology, Archaeological Survey of India, Delhi.
  • “The origin of coinage”, 6th & 7th January 1992.
  • “Introducing the earliest Hindu gods in Gandhara”, 9th November 2011.
Museum Society of Bombay, Bombay
  • “New numismatic evidence on the history of Greeks in Bactria and India”, Indian Coin Society, 4th January 1992.
  • “Representations of Ganesha on Indo-Greek coins: fact or fiction”, Indian Coin Society, 25th July 1992.
University of Delhi, Delhi.
  • “New numismatic evidence on the history of Greeks in Bactria and India”, Department of History, 14th January 1992.
Indira Gandhi National Centre for the Arts, New Delhi.
  • “Sigiriya and garden concept in Sri Lanka”, 19th August 1992.
  • “Maritime Trade and Cultural Exchanges in the Indian Ocean: India and Sri Lanka”, Project Mausam/Mawsim: Maritime Routes and Cultural Landscapes30th December, 2014.
Institute of Archaeology, National Museum of New Delhi.
  • "Elephant Headed Ganesa or Zeus-Mithra?", 20th August 1992.
Rohilkand University, Bareilly, Department of History and Culture
  •  “The origin of coinage”, 22nd August 1992.
  •  “The cult of Ganesha”, 22nd August 1992.
  •  “The cultural heritage of Afghanistan”, 10th January 2002.
  •  “Numismatics evidence in constructing Indo-Greek history”, 9th January 2004.
Tamil Nadu Numismatic Society, Madras.
  •  “Coins from the citadel of Anuradhapura, Sri Lanka”, 12th April 1997.
University of Madras, Madras.
  • “New evidence on the maritime trade between South India and Sri Lanka”, Department of Ancient History and Archaeology, 12th January, 2009.
  •  “Trade relations between India and Sri Lanka”, Department of Ancient History and Archaeology, 27th January 1998.
Indian Institute of Architects, Tamilnadu Chapter, Alliance Française de Chennai, Madras.
  • “Sigiriya and the Garden concept of ancient Sri Lanka”, 27th January 1998.
Institut Français de Pondichéry et Département d’Indologie (E.F.E.0), Pondichery
  •  “Sri Lanka and sea-born trade in the Indian Ocean: Results of the French archaeological Mission in Sri Lanka”, 28th January 1998.
India International Centre, New Delhi.
  •  “Recent archaeological discoveries in Afghanistan and the destruction of cultural heritage”, 12th January 2002.
  •  “New Archaeological evidence: History of Greeks in Bactria and India revisited”, 21st December 2004.
Jamia Milia University, New Delhi.
  • “The destruction of the Cultural Heritage of Pakistan”, 15th January 2002.
Centre for Archaeological Studies & Training, Eastern India, Calcutta.
  •  “Recent archaeological discoveries from Afghanistan”, 5th January 2004.
  •  “New archaeological evidence on trade relationship between ancient South-India and Sri Lanka, 6th January 2004.
  •  “Sigiriya: A Study of Landscape architecture in ancient Sri Lanka”, 13th December 2004.
Department of Ancient Indian History & Culture, University of Calcutta
  • “Numismatic evidence in constructing Indo-Greek history”, 6th January 2004.
  •  “History of Greeks in Bactria and India revisited”, 14th December 2004.
  •  “Sigiriya pleasure gardens”, 5th December 2007.
  •  “Chronology of early Kushans”, 6th December 2007.
  •  “Ships and shipwrecks in the Indian Ocean”, 12th February 2013.
The Asiatic Society of Bengal, Calcutta.
  • “Sculptures of Amaravati tradition in Sri Lanka”, 6th December 2007.
Department of History, Pondicherry University, Puducherry
  • "A 2nd Century BCE shipwreck in the Indian Ocean and the role of the Bodhisattva Avalokitesvara as the protector of mariners”, 22nd January 2013.
Samvidya Institute of Cutural Studies, Pune
  • “Second Century BCE shipwreck in Sri Lanka and maritime trade networks in the Indian Ocean”, 30th January 2013.
  •  “Recent Archaeological and numismatic discoveries from Afghanistan and Pakistan: Indo-Greek, Indo-Scythian and Indo-Parthian history revisited”, 30th January 2013.
Indian Institute of Advanced Study, Shimla
  • “Dionysius, the God of Fertility and Wine, in India: the Greek Interaction with Gandharan Buddhist Art”, Indian Institute of Advanced Study, Shimla, 30th July 2014.
Kerla Council for Historical Research, Trivendrum
  • “Sigiriya Pleasure gardens and the International Trade in the Vth century AD”, 4th January 2010.
C.P. Ramaswami Aiya Institute of Indological Research, Chennai
  • "New Archaeological and Numismatic Evidence on Trade in the Indian Ocean: The Discovery of the Second Century BCE Shipwreck at Godavaya, Sri Lanka", 18th August 2015.
  • “From Alexander the Great to Kanishka: Numismatic evidence in constructing early Central Asian and Indian history”, 1st August 2016.
Stella Maris College, Chennai.
  • "Alexander the Great and Dionysius: The Greek interaction with early Buddhist art”, Department of History and Tourism, 2nd August 2016.


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