| 1 | Invited for talk on “Nanomaterials for Optoelectronic/ Energy Application” for Refresher Course in Material sciences, Kerala University, on 22-10-2020. | 
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| 2 | Invited for talk on “Photocatalytic organic/inorganic binary hybrids of graphene”, Centenary Webinar Series Talk, Union Christian College, Aluva, 29/09/2020. | 
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| 3 | Invited for talk on “Photocatalytic binary hybrids of graphene with semiconductor metal oxides”, International Conference on Applied Catalysis and Chemical Engineering (ACC-2019), Dubai, UAE, April 8-10, 2019. | 
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| 4 | Invited for talk on “walk with Scholar Programme”, Marthoma College for Women, Perumbavoor dated 10-12-2019. | 
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| 5 | Inauguration and nvited for talk on “Advancement and challenges in Polymer Science and technology”, NSS college, Karamana, dated 27-11-2019 (forenoon). | 
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| 6 | Invited for talk on “Polymer based Nano composite for Optoelectronic / Energy Application” for Refresher Course in Material sciences on 27-11-2019 (afternoon). | 
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| 7 | Chief Guest, Science Seminar and Exhibition, Govt. Girls’ HSS, North Paravur, 15th November 2019. | 
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| 8 | Invited for talk on ‘Polymers: Impact on environment’, Prof. A.J. Benjamin Memmorial Lecture Series 2018, December 13, 2018. | 
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| 9 | Invited for talk on ‘Beauty of good research’ in National Level Research Orientation Programme [ROP 2018], Maharajas college, Ernakulam, February 17, 2018. | 
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| 10 | Inauguration and Invited for talk on ‘Science and Technology for sustainable development’, in National Science Day BODHI-2018, Sacred Heart Thevara,  February 26, 2018. | 
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| 11 | Invited lecture on ‘Polymer nanocomposites for environmental applicaions’, in refresher course on Material Science, Kerala University, November2, 2018. | 
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| 12 | Invited for talk on ‘Nano materials in concrete’, Short term course conducted in TKM engineering college, Kollam, December 18, 2018
Invited for talk on ‘Plastic Debris: Impact on environment’    in National Seminar on  ‘Municipal Solid Waste Management and its Impact on Ecosystems’ | 
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| 13 | Invited for talk on ‘Energy and Environment’  in ‘ENCON’, St.Paul’s College, Kalamassery, 28th July 2017ecember 18, 2018. | 
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| 14 | Invited for talk on ‘Polymer based photocatalyst and its application in solar cells’ in One day International Seminar on “Recent Advances in Solar Energy Applications” [RASE-2016] | 
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| 15 | Invited for talk on ‘Nano composites for optical applications’, in National seminar on ‘Smart Materials for Futuristic Electronics and Information TechJanuary 15, 2016. | 
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| 16 | Invited for talk on “ Nanopolyaniline/graphene hybrids for optical applications” in Workshop on Nanophotonics, Dept. of Physics, CUSAT,  March 18-19, 2016. | 
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| 17 | Invited lecture on ‘Polymer based nanocomposites for optoelectronic/energy applicaions’, in refresher course on Material Science, Kerala University, December 5, 2016. | 
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| 18 | Invited for talk on “Bio-nano composites: Challenges and opportunities” in National TechnologyDay (NTD) 2016 on 13th May 2016 organized by CBPST. | 
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| 19 | Invited for talk on ‘Polymer nanocomposites’, St. Alberts College, October 15, 2015. | 
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| 20 | Invited for talk on ‘Nano composites for optical applications’, in National seminar on ‘Smart Materials for Futuristic Electronics and Information Technology’, Cochin College January 15, 2016. | 
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| 21 | Invited for talk on “Nanopolyaniline/graphene hybrids for optical applications” in Workshop on Nanophotonics, Dept. of Physics, CUSAT,  March 18-19, 2016. | 
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| 22 | Invited for lecture on ‘Polymer based nanocomposites for optoelectronic/energy applicaions’, in refresher course on Material Science, Kerala University, December 5, 2016. | 
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| 23 | Invited for talk on “Bio-nano composites: Challenges and opportunities” in National TechnologyDay (NTD) 2016 on 13th May 2016 organized by CBPST. | 
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| 24 | Invited for talk on “Nanopolyaniline/graphene hybrids for optical applications” in Workshop on Nanophotonics, Dept. of Physics, CUSAT,  March 18-19, 2016. | 
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| 25 | Invited for talk on ‘Nano composites for optical applications’, in National seminar on ‘Smart Materials for Futuristic Electronics and Information Technology’, Cochin College January 15, 2016. | 
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| 26 | Invited for talk on ‘Polymer nanocomposites’, St. Alberts College, October 15, 2015. | 
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| 27 | Invited Lecture on “Conducting Polymer Nanocomposites” in a Refresher Course conducted by ‘UGC-Academic Staff College’, University of Kerala on 4th December 2015. | 
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| 28 | Invited for talk on “Nanotechnology for Space applications” in a National conference on ‘CNT-2011’, organized by St. Theresas College, Ernakulam, 29th July 2011. | 
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| 29 | Invited for talk on “Electrically conductive polymers” in a National conference on ‘Emerging Trends in Material Chemistry’ organized by Holy cross College, Nagercovil, 19th February 2010. | 
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| 30 | Invited for talk on “Empowering Nanoscience and Technology” in a National conference on ‘Quantum Chemistry and Nanotechniques’ organized by S N College, Maliyankara, 29th November 2009. | 
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| 31 | Invited for Lecture on “Electrically Conductive Polymers” at the National Seminar on ‘Emerging Trends and Vistas in Polymer Science’, conducted by Govt. Attingal college, on February 14th 2008. | 
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| 32 | Invited for Lecture on “Conducting Polymers” in a Refresher course for college teachers organized by Maharajas Govt. College, Ernakulum, on 25th February 2008. | 
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