
 On problems related to algebraic
connectivity of Graphs, Dept. of Maths and Stats, Concordia University,
April 01, 2011.
 Graph
Structure via its Laplacian Matrix, Invited talk at the Centenary
meeting of the Indian Mathematical Society, Pune University, Dec. 2007.
 A
series of lectures on Ramanujan Graphs, Workshop on Algebraic Graph
Theory, IIT Guwahati, December 2004.
 A
generalized Decoding Algorithm for Expander Codes on Some MultiPartite
Graphs, 16th SIDIM Conference, Univ. of Puerto Rico at Humacao Campus,
Feb 2324, 2001 (with H. Janwa).
 On
Polya Enumeration Theory, Instructional Seminar on Developments in
Graduate Level Mathematics, Dr. Babasaheb Ambedkar Marathwada
University, Aurangabad (Maharastra), Oct. 1112, 1999.
 On
A Generalization of the Mozes' Game of Numbers, Int. Graph Theory
Conference, Anamalai University, Jan 5 7, 1993.
 On
Distinct Coset Representatives in Coxeter Groups, Instructional Workshop
on Reflection Groups, Mumbai University, May 1993.
 On
Permutation Statistics, Instructional Conference on Discrete
Mathematics, Mumbai University, Dec. 1993.
