64. "Computing and Mathematics" invited talk delivered at Institute of Engineering and Technology, University of Calicut, January 2025.
63. "Free Software, Myths and Realities" invited lecture delivered at LBS Model Degree College, Parappanangadi, Malappuram, July 2019.
62. "Vulnerable Youth in Cyber Space" invited talk delivered at Don Bosco College, Mampatta, Mukkom, Kozhikode, September 2017.
61. "Free and Open Source Software - Scope and Benefits for Entrepreneurs" delivered an invited talk in TEDP 2017 conducted by TBI, NIT Calicut, August 2017.
60. "Artificial Intelligence" lecture delivered at Kendriya Vidyalaya No.1, Kozhikode in connection with In-service training for PG teachers in Computer Science December 2015.
59. "Free Software in Higher Education" invited lecture delivered at UGC Human Resource Development Centre, Kannur University, December 2015.
58. "The Story of Digital Computing" invited talk delivered at Kendriya Vidyalaya, No.1, East Hill, Kozhikode, July 2015
57. "SMART Governance" invited talk delivered at Kozhikode Collectorate in connection with Digital India Week celebration, July 2015
56. "Digital Signature" invited talk delivered at National Institute of Technology, Calicut in connection with Digital India Week celebration, July 2015
55. "Free Software in Higher Education" invited lecture delivered at UGC Academic Staff College, University of Calicut, August 2014.
54. "Free Software in Higher Education" lecture given in the orientation programme at UGC Academic Staff College, Kannur University, January 2014.
53. "Free Software, Myths and Realities" talk delivered at KMCT College of Engineering, Manassery, Kozhikode, January 2014.
52. "Cryptography and Network Security" invited lecture delivered in the National seminar on Techno Management at Govt. College, Quilandy, December 2013.
51. Quizz Master for IT Quizz competitions for HS and HSS conducted in connection with State level IT Fest, Kannur, November 2013.
50. "Mathematics and Computer" invited lecture delivered in TIPS Summer Camp for students at Malabar Christian College, Kozhikode, April 2013.
49. "Free Software and its relevance in Higher Education" invited talk delivered in UGC Academic Staff College, Kannur University, March 2013.
48. "Free Software and Globalisation" invited lecture delivered in the National seminar on "Globalisation and State in India" at Govt. College, Madappally, November 2012.
47. "Free Software for Higher Education" invited lecture delivered at UGC Academic Staff College, Kannur University, September 2012.
46. "Information Technology in Higher Education" invited talk delivered at UGC Academic Staff College, Calicut University, August 2012.
45. "Computing Algorithms" invited talk delivered at UGC Academic Staff College, Calicut University, July 2012.
44. "Code Tuning" invited talk delivered at MES College of Engineering, Kuttippuram, Malappuram, April 2012
43. "Mathematics and Computer" invited lecture delivered in IGNITE 2011 - Workshop on the essence of computing for High School Students at NIT Calicut, April 2011.
42. "Free Software in Higher Education" invited lecture delivered at UGC Academic Staff College, Calicut University, March 2011.
41. "Computer and Localisation" invited talk delivered in the UGC National Seminar on Language and Technology at Malabar Christian College, Calicut, October 2010.
40. "Economics of Free Software" seminar talk delivered in Insight-2010 conducted by Computer Science Students' Association at University of Calicut, January 2010.
39. "Free Software in Higher Education" invited talk delivered at UGC Academic Staff College, Kannur University, Kannur, November 2009.
38. "Mathematics of Computer Graphics" invited talk delivered in the UGC sponsored National Seminar on "Application of Topology and Category theory in Computer Science" at All Saints College, Thiruvananthapuram, October 2009.
37. "Software Quality Management" invited lecture delivered in AICTE sponsored Staff Development Programme on "Best Practices in Software Project Management" at Amal Jyothi College of Engineering, Kanjirapally,Kottayam, May 2009.
36. "Code Tuning" seminar presented at College of Engineering, Thalassery in connection with the Technical Fest - Abinitio '09, February 2009.
35. "Free Software and Democracy" invited talk deliverd in UGC sponsored National Seminar on "Impact of Technology in Democracy, E-Governance and Open Administration" at Govt. College, Madappally, Vadakara, January 2009.
34. "Free Software in Higher Education" invited talk deliverd in "National Free Software Conference" at CUSAT, Kochi, November 2008.
33. "Economics of Free Software" - invited lecture delivered in UGC sponsored National seminar on "IT and Economic Development" at MD College, Pazhanji, Thrissur, October 2008.
32. "Fundamentals of Database" - invited talk delivered at AWH Special College, Calicut, February 2008.
31. "Code Tuning" - Seminar presented in connection with InsighT 2008, at Calicut University, January 2008.
30. "Quantum Computing Algorithms" - invited talk delivered at Providence Women's College, Calicut, January 2008.
29. "Computer Science - A Mathematician's Perspective" - Invited talk delivered at College of Engineering, Chengannur, December 2007.
28. "Artificial Intelligence" - Talk delivered at EMEA Arts and Science College, Kondotty, Malappuram, December 2007.
27. "Free Software - Myths and Realities" - Talk delivered at UGC Academic Staff College, University of Calicut, November 2007
26. "Network Security" - Invited lecture delivered at JDT Islam Polytechnic College, Calicut, August 2007.
25. "ICT Policy and Strategies of Kerala" - Invited talk delivered in UGC sponsored National Seminar on "E-Governance in Kerala" at Govt. College, Kodenchery, Calicut, March 2007.
24. "Introduction to Computing Algorithms" - invited lecture delivered in UGC sponsored National Seminar on "Recent Trends in Discrete Mathematics" at PSMO College, Thirurangadi, Malappuram, Kerala, March 2007.
23. "Database Management System Concepts" - Invited lecture delivered at UGC Academic Staff College, University of Calicut, January 2007.
22. "Information Technology in Higher Education" - invited lecture delivered at UGC Academic Staff College, University of Calicut, August 2006.
21. "Cryptography" - seminar talk delivered in connection with the National IT fest IRIS 2006 conducted by MCA Centre Vadakara, March 2006.
20. "Foundations of Computer Graphics" - invited lecture delivered at UGC Academic Staff College, Calicut University, January 2006
19. "E Learning - a new paradigm" - talk delivered in the UGC sponsored workshop on "Technology enabled content creation", Farook College,Calicut, November 2005.
18. "Programming - A Mathematical discipline" - Talk delivered at Zamorin's Guruvayurappan College, Calicut, October 2005.
17. "Software vs Conventional Engineering, a scientific comparison" - Talk delivered at Manipal Institute of Technology, Manipal, Karnataka, September 2005.
16. "Free Software Philosophy" - Talk delivered at Govt. College, Chittur, Palakkad, March 2005.
15. "Computer Science - A Mathematician's Perspective" - Talk delivered at Thunchan Memorial Govt. College, Tirur, Malappuram, Jan 2005.
14. "Influence of IT in Business" - Invited talk arranged by Department of Commerce, NSS College, Manjeri.
13. "Information Technology and Globalization" - Talk delivered in Malayalam in connection with the District Level Study Camp organized by Mathrubhumi Study Circle.
12. "Software Quality Issues" - Talk delivered at MES College of Engineering, Kuttippuram.
11. "Foundations of DBMS" - Talk delivered at AWH College of Engineering, Kuttikkattur, Calicut.
10. "Object Oriented Programming and its applications in Mathematics" - lecture delivered at Baselius College, Kottayam.
9. "Software Engineering - An Industrial Perspective" - Talk delivered at Farook College, Feroke.
8. "Client Server Technology" - talk delivered at Little Flower College, Guruvayur.
7. "LINUX - On the Threshold" and "LINUX - The Base Camp" - talks delivered at Mary Matha College Mananthavady in connection with GNU/LINUX workshop.
6. "Thin Client Computing" - talk delivered in the seminar conducted by 'Banking Frontiers' at Calicut.
5. "Software Quality Management" - lecture given for Refresher course for College Teachers at CUSAT.
4. "Mathematics of Computer Graphics" - lecture given for the National Seminar conducted at St.Joseph's College Irinjalakuda.
3. "Software Process Improvement" - lecture given for Workshop on Software Engineering at NIT Calicut.
2. "Computer and Human Rights" - Talk delivered at UGC Academic Staff College, University of Calicut.
1. "Cryptography and Security" - lecture given for ISTE STTP at PMCTW, Vallam, Thanjavur.