D. Eisenbud 
Univ. of California, Berkeley and MSRI 
Algebraic Invariants of Geometric Objects

20 December 2001 
K. R. Parthasarthy 
Indian Statistical Institute, Delhi 
An Invitation to Quantum Computing

14 March 2002 
M. F. Atiyah 
Newton Institute, Cambridge, U.K. 
Polyhedra and Minimal Energy Configurations

18 November 2003 
R. P. Langlands 
Institute of Advanced Study, Princeton, U.S.A. 
Reflections on the legacy of HarishChandra

08 March 2006

C. R. Rao 
Eberly Professor Emeritus, Pennsylvania State University, U.S.A. 
Statistics: Past, Present and Future 
05 January 2007

R. Balasubramanian 
Institute of Mathematical Sciences, Chennai. 
Applications of Number Theory to Cryptology

16 January 2007

Prof. M. Ram Murty 
Queen's University, Canada 
Summation of Infinite Series

21 October 2009 