Bavani Grahadurai Gold Medal (2005): Awarded by Ayya Nadar Janaki Ammal College, Sivakasi.
Ayya Nadar Gold Medal (2003): Awarded by Ayya Nadar Janaki Ammal College, Sivakasi.
Research Publications
Steiner radial number resulting from various graph operations * Authors: Gurusamy R., Lakshmanan R., Ratha Jeyalakshmi R., Arockiaraj S. Journal: Electronic Journal of Graph Theory and Applications, Vol. 13 (2025), pp. 31-41.
Minimum Roman Dominating Distance Energy of a Graph * Authors: Lakshmanan R., Annamalai N. Journal: Journal of the Indonesian Mathematical Society, Vol. 29 (2023), pp. 338-346.
Construction of a (k, n)-visual cryptography scheme * Authors: Lakshmanan R., Arumugam S. Journal: Designs Codes and Cryptography, Vol. 82 (2017), pp. 629-645.
On (k, n)*-visual cryptography scheme * Authors: Arumugam S., Lakshmanan R., Nagar A.K. Journal: Designs Codes and Cryptography, Vol. 71 (2014), pp. 153-162.
Visual cryptography scheme for graphs with vertex covering number two * Authors: Arumugam S., Lakshmanan R., Nagar A.K. Journal: National Academy Science Letters, Vol. 36 (2013), pp. 575-579.
Graph access structures with optimal pixel expansion three * Authors: Arumugam S., Lakshmanan R., Nagar A.K. Journal: Information and Computation, Vol. 230 (2013), pp. 67-75.
Visual cryptography scheme for the mindom access structure of a graph * Authors: Lakshmanan R., Arumugam S., Nagar A.K. Journal: Journal of Combinatorial Mathematics and Combinatorial Computing, Vol. 84 (2013), pp. 69-80.
Professional Memberships
Indian Society for Technical Education (2015): Life time member.
