|1.||Number Theory seminar at the University of Cambridge in January, 1999|
|2.||Participant talk during the School on Automorphic Forms on GL(n) at the ICTP, Trieste in August, 2000.|
|3.||Invited speaker, International Conference on Algebraic Number Theory at Harish-Chandra Research Institute (HRI), Allahabad in November, 2000.|
|4.||Invited speaker, Number Theory seminar at Tata Institute of Fundamental Research (TIFR), Bombay in January, 2001.|
|5.||Invited speaker, Number Theory seminar at Imperial College, London in January, 2001.|
|6.||Seminar talk at IHES, France in November, 2001.|
|7.||Quebec-Vermont Number Theory Seminar, Montreal in March, 2002|
Colloquium talk at Tata Institute of Fundamental research (TIFR) Bombay in March, 2005.
|9.||Presentation of research work at IIT Bombay in June, 2005.|
Invited speaker at the
International Conference on Number Theory, Harish-Chandra
Research Institute, Allahabad, Dec 2006.
|11.||Seminar talk at the Tata Institute of Fundamental Research (TIFR), Bombay, Jan 2007.|
|12.||Talks at the workshop on Arithmetic and Geometry held at IIT Guwahati, Sept. 2008.|