• A few Wonderful Proofs of Fundamental Theorem of Algebra, Spring
2003, Northeastern University Graduate Student Seminar.
• Tangent Cone of a Schubert variety in SL n /B at a Singular point,
Summer 2003, Northeastern University, TAPAS seminar.
5• Hibi Toric Varieties, Summer 2006, Northeastern University, TAPAS
seminar.
• Singular Loci of Hibi Toric Varieties, Summer 2007, Northeastern Uni-
versity, TAPAS seminar.
• Tangent Cone of Hibi Toric Varieties, ISI Kolkata, Nov 2008.
• Singular Loci of Hibi Toric Varieties,Harishchandra Research Insti-
tute, Allahbad, September 2008.
• Singular Loci of Hibi Toric Varieties, IISER Kolkata, April 2009.
• Divisors of Hibi Toric Varieties. IISER Kolkata, March 2013.
• Improved Banzhaf power index, ICMAA conference, Shinshu Univer-
sity, Nagano, Japan, June 2018.

• Series of three talks on free resolution of Hibi toric ideals, NITK Surathkal, November, 2022.