- (with Subir Ghosh and Sudeep Sarkar) Exploring an unknown polygonal environment with bounded visibility, Lecture Notes in Computer Science, No. 2073, pp 640-648, Springer Verlag, 2001.ps file.

- (with G. R. Vijayakumar) Effect of edge subdivision on vertex-domination in a graph, Discussiones Mathematicae Graph Theory, 22 (2002) 335-347. ps file. >

- Lecture notes (preliminary version) of Professor K. R. Parthasarathy in "Quantum Computation and Quantum Error Correcting Codes". ps file

- On a conjecture of Manickam and Singhi, Discrete Mathematics, 272 (2003) 259-261. pdf file.

- (with G. R. Vijayakumar) Domination in digraphs and variants of domination in graphs, J. Combin. Inform. System Sci., 30 (2005), no. 1-4, 19--24.

- (with S. Sivasubramanian and Murali K. Srinivasan), The polytope of degree partitions, The Electronic Journal of Combinatorics, Volume 13(1), 2006, 18 pages. pdf file.<

- (with G. R. Vijayakumar), An integrality theorem of root systems, European Journal of Combinatorics, Volume 28, Issue 6, August 2007, 1854--1862. pdf file.

- (with U. N. Peled and S. Friedland), The Polytope of Dual Degree Partitions, Linear Algebra and Its Applications, Volume 426, Issues 2-3, 15 October 2007, 458--461. pdf file.

- (with U. N. Peled and S. Friedland), On the First Eigenvalue of Bipartite Graphs, The Electronic Journal of Combinatorics, Vol. 15, 2008, 23 pages. pdf file.

- (with U. N. Peled and M. K. Srinivasan), The cone of balanced subgraphs, Linear Algebra and its Applications, Volume 431, Issues 1--2, 1 July 2009, Pages 266-273. pdf file.

- (with B. DasGupta D. Mubayi and G. Tur\`{a}n), On optimizing Horn Formula, ICALP'10 Proceedings of the 37th international colloquium conference on Automata, languages and programming Pages 438-450 Springer-Verlag Berlin, Heidelberg. pdf file.

- (with N. M. Singhi), Some Approaches to solve General $(t,k)$ design existence problem and other related problems, Discrete Applied Mathematics, Volume 161, Issue 9, June 2013, Pages 1180--1186. pdf file.

- (with N. M. Singhi), Characterization of line graphs of $r$-uniform hypergraphs with bounded pair degree.

- (with U. N. Peled and M. K. Srinivasan), Alternating Reachability. pdf file.