1.	Dr. S. Sukumaran "Species richness and Economic importance of Lianas in the sacred groves of Kanyakumari District, Tamilnadu" , Environmental protection and Sustainability, organised by Sadakathullah College (Autonomous) Tirunelveli, on 05-08-2019

2.	Dr. S. Sukumaran "Diversity and Distribution of lianas in the Sacred groves of Kanyakumari district, Tamilnadu" , Biodiversity – A Resource for future Sustenance, organised by Department of Botany, Scott Christian College, Nagercoil, Tamilnadu, on 27-09-2018

3.

Dr. S. Sukumaran "Vegetation analaysis of Rapirian grass in Vilavancode taluk, Tamilnadu, India and Floristic Studies on the Riparian Monocots of Mullaiyaru River in Vilvancode Taluk, Kanyakumari district" , Biodiversity – A Resource for future Sustenance, organised by Department of Botany, Scott Christian College, Nagercoil, Tamilnadu, on 28-09-2018

4.	Dr. S. Sukumaran "Diversity of Pteridophytes along the stretches of Thamirapaarani River (west) Kanyakumari District, Tamilnadu" , Biodiversity – A Resource for future Sustenance, organised by Department of Botany, Scott Christian College, Nagercoil, Tamilnadu, on 27-09-2018

5.	Dr. S. Sukumaran "Vascular Plant diversity in the Sacred groves of Parakudi Village in Kanyakumari District, Tamilnadu" , Biodiversity – A Resource for future Sustenance, organised by Department of Botany, Scott Christian College, Nagercoil, Tamilnadu, on 27-09-2018

6.	Dr. S. Sukumaran "Plant Diversity of the Sacred Forests of Kanyakumari District: Status and Statistics" , Sustainable Energy for Development - Opportunities and Challenges Ahead , organised by Department of Botany, St. Xavier's College (Autonomous), Palayamkottai, on 13-12-2012

7.	Dr. S. Sukumaran "Plant Diversity of the Sacred Forests of Kanyakumari District: Status and Statistics" , Sustainable Energy for Development - Opportunities and Challenges Ahead , organised by Department of Botany, St. Xavier's College (Autonomous), Palayamkottai, on 13-12-2012

1.	Dr.S.Sukumaran "மரபுவழி வேளாண் முறைகளில் இயற்கைக் கோவில்களின் பங்கு " , அனைத்திந்திய அறிவியல் தமிழ் கழகத்தின் 9-ஆம் கருத்தரங்கு , organised by அனைத்திந்திய அறிவியல் தமிழ் கழகம், தஞ்சாவூர் , on 28-02-2020

1.	Resource person in the "Science exhibition Competition for School Education in Kanyakumari District" , held at Annai Velankanni College, Tholayavattam, on 14-01-2020. The title of the Lecture was "Save for nature".

2.	Resource person in the "Educational development day " , held at LMS H. Sc. School, Marthandam , on 15-07-2016.

3.	Resource person in the UGC sponsored "National Seminar " , held at Department of Botany, St. John’s College, Palayamkottai, on 16-04-2015. The title of the Lecture was "Recent Trends and Strategies in Biodiversity".

4.	Resource person in the "Referee for the poster presentation competition " , held at Department of Biotechnology, Malankara Catholic College, Mariagiri, Kanyakumari District , on 14-02-2014. The title of the Lecture was "Regenerative Medicine".

5.	Resource person in the "National Conference " , held at VHNSN College, Virudhunagar, on 13-12-2013. The title of the Lecture was "Emerging Trends in Medicinal Plants and Herbal Products".

6.	Resource person in the "Project Training" , held at Tamilnadu Forest Department , on 29-11-2012. The title of the Lecture was "Tamilnadu Biodiversity Conservation and Greening Project Training for Village Volunteers and Antipoaching Squads".

7.

Resource person in the NCSTC, DST, Government of India, New Delhi sponsored "18th National Children’s Science Congress – 2010" , held at Christian College of Education, Marthandam , on 19-11-2010. The title of the Lecture was "students team to complete their research projects of 18th National Children’s Science Congress – 2010".

1.	Participated in the Conference on "People's Education Policy" , St.John's College, Palaymkottai, Tirunelveli , organised by MUTA, on 4th January 2020 .

2.	Participated in the Conference on "contemporary environmental issues and conservation of Southern Western Ghats" , organised by Department of Botany & Research Centre, Nesamony Memorial Christian College, Marthandam, on 07th and 08th February 2019.

3.	Participated in the Conference on "Phytomedicine" , organised by Bharathiar University, on 29th to 31st August.

4.	Participated in the Conference on "IIIrd International conference of KASS" , NMCC Marthandam, organised by Nesamony Research Forum (NRF) & Kanyakumari Academy of Arts and Science, on 28th & 29th Sept. 2018.

5.	Participated in the Conference on "Recent Scenario in plant science Research – climate change and its Associated variations (ICRSPSR 2018)" , organised by Annamalai University, Chidambaram , on 23.03.2018 – 25.03.2018.

6.	Participated in the Conference on "Recent Trends in Life Science Research : Practices and Application for Sustainable Development" , organised by Bharathiar University, Coimbatore, on 07.09.2017 & 08.09.2017.

7.	Participated in the Conference on "Nano-technology: The fruition of Science " , organised by research committee, Nesamony Memorial Christian College, Marthandam, on 15th & 16th April 2017.

8.	Participated in the Conference on "Indian Herbal Drugs" , sponsored by UGC, organised by Department of Environmental and Herbal Sciences, Tamil University, Thanjavur , on 14th and 15th March 2014.

9.	Participated in the Conference on "Land use, Biodiversity and climatic change" , sponsored by UGC and CSIR , organised by N.M.C. college Marthandam, on 6th and 7th Oct. 2008.

10.	Participated in the Conference on "Bio-Medical waste Management" , Tamil Nadu Pollution control Board Auditorium Chennai -–600 032, organised by Tamil Nadu Pollution Control Board in Association with United States – Asia Environmental partnership (US-AEP), on February 10-12, 1999 .

1.	Participated in the Seminar on "Bio-diversity – A Resource for future Sustenance (BaRFS)" , organised by Department of Botany, Scott Christian College, NGL, on 27th and 28th Sept. 2018.

2.	Participated in the Seminar on "Digital India" , organised by Department of Commerce, NMC College, Marthandam, on 24th March 2017.

3.	Participated in the Seminar on "Plant Genetic Resource: Utilization and Conservation" , sponsored by DST, organised by Department of Botany, VOC College, Tuticorin , on 12th and 13th February 2015.

4.	Participated in the Seminar on "Environmental Education – Challenges and Practices " , sponsored by United Board for Christian Higher Education in India and University Grants Commission (UGC) , organised by St. Xavier's college, Palayamkottai,, on 10 and 11 January 2013.

5.	Participated in the Seminar on "Lower Group Biodiversity with special reference to algal diversity" , sponsored by UGC, organised by W.C.C, Nagercoil,

6.	Participated in the Seminar on "'Global Climatic charge and its impact on Biodiversity'" , sponsored by Ministry of Earth Science and CSIR , organised by Dept. of plant Biology plant Biotechnology St. Xavier's college, Palayamkottai, on 19-20 Feb. 2009.

7.	Participated in the Seminar on "Recent Innovations and Challenges in plant Taxonomy" , organised by Department of Botany, Nesamony Memorial Christian College Marthandam , on 12th Jan. 2009.

8.	Participated in the Seminar on "Endemic endargered species of the Nilgiris" , sponsored by HADP, organised by Department of Advance Zoology, Biotechnology and Wild life Biology, Govt. Arts College, Udhayamandalam, on 21st and 22nd Aug. 2008.

9.	Participated in the Seminar on "Biodiversity conservation" , organised by Department of Botany and Research Centre. Scott Christian College, Nagercoil, on 08th Feb. 2008.

10.	Participated in the Seminar on "Water conservation" , organised by Department of Botany Nesamony Memorial Christian College, Marthandam, on 22nd Jan. 2008.

11.	Participated in the Seminar on "Environmental Sustainability of Western Ghats of India" , sponsored by DST and CSIR , organised by Department of Botany, Nesamony Memorial Christian College, Marthandam, on 16th to 18th August 2007.

12.	Participated in the Seminar on "Biodiversity conservation" , organised by Dept. of plant Biology and Biotechnology, S.T. Hindu College, Nagercoil , on 24th Feb. 2007.

13.	Participated in the Seminar on "Botanical Nomenclature" , organised by Department of Botany of Research Centre, Scott Christian College, Nagercoil, on 19th August 2002.

14.	Participated in the Seminar on "Medicinal Plants" , organised by Sri Sankara Educational Charitable Trust, Trichy, on 20th and 21th October 2001 .

15.	Participated in the Seminar on "Recent Trends in Applied Biology" , sponsored by Tamil Nadu State Council for Science and Technology and the Management S.T. Hindu College Association, organised by Department of Botany and FLORA, S.T. Hindu College, Nagercoil, on 30-31" October 1999.

16.	Participated in the Seminar on "Present Status of the Western Ghats" , sponsored by University Grants Commission , organised by Department of Zoology. Aditanar College of Arts and Science, Thiruchendur, on 19 to 21 March, 1999.

17.	Participated in the Seminar on "Wealth From Waste" , sponsored by Management S.T. Hindu College Association , organised by Department of Botany, S.T. Hindu College, Nagercoil , on 6th March 1998.

1.	Attended the Workshop on "Identification, Bioprospecting and conservation of Lichens" , organised by Bharathiar University Coimbatore in collaboration with Indian Lichenological society & CSIR National Botanical Research Institute (NBRI), Lucknow, on 12th and 13th September 2019.

2.	Attended the Workshop on "Recent Technological Innovations in Teaching, Learning and Evaluation for Quality Higher Education" , organised by Research Committee, Nesamony Memorial Christian College, Marthandam, on 18th and 19th of March 2019.

3.	Attended the Workshop on "'Recent Trends in Biological Sciences" , organised by Gandhigram Rural Institute, Deemed University, Gandhigram, Dindukal, on 23.10.2017 – 24.10.2017.

4.	Attended the Workshop on "Human Values Development Programme " , organised by AICHE at Women’s Christian College, Nagercoil , on 14th & 15th Descember 2016.

5.	Attended the Workshop on "Taxonomy at Forest Genetics and Tree Breeding " , sponsored by Ministry of Environment, Forest and Climate Change, Government of India, organised by Taxonomy at Forest Genetics and Tree Breeding Institute, Coimbatore, on 04-03-2015 to 06-03-2015.

6.	Attended the Workshop on "Plant Tissue Culture" , organised by Department of Botany, Nesamony Memorial Christian College Marthandam , on 1 and 2nd February 2010.

7.	Attended the Workshop on "Keepting Environment Clean and Green" , sponsored by Ministry of Envornment and Forests, New Delhi, organised by Vivekananda Kendra NARDEP, Kanyakumari, on 3rd March 2001.

8.	Attended the Workshop on "Plants, people and patents" , sponsored by CIDA – Shastri Indo-Cannadian Insitute , Scott Christian College, Nagercoil , organised by International Ocean Institute ITI Madras, Chennai and Department of Botany, Madras Christian College Chennai, on 11th February 2000.

9.	Attended the Workshop on "குமரிக் கடற்கரை நீர்வளங்கள் : கி. பி. 2000 ஆண்டின் வாய்ப்புகள்" , organised by Departmet of Zoology, St. Judes College, Thootoor, on 1999 July 9,10.

10.	Attended the Workshop on "Saving the Freshwater Wetlands of Kanyakumari District" , organised by Insitute for Resttoration of Natural Environment, on 23 to 24 March 1999 .

11.	Attended the Workshop on "Natural Resources" , Centre for Appropriate Technology (CAT) Nagercoil , organised by Society for Environment Education and Development (SEED) , on 14th and 15th February 1998.

12.	Attended the Workshop on "Sidha & Medicinal plants for local Traditional Siddha practitioners" , sponsored by Natural resource development project Kanyakumari , organised by Vivekananda Kendra, on 23rd to 25th May 1997 .

13.	Attended the Workshop on "Holistic health care programe" , organised by Marthandam Y.M.C.A., on 25th Jan. 1997.

1.	Organised Conference on "Research in Present Scnerio" , organised by Nesamony Research Forum, NMCC, Marthandam, on 2016-2017.

1.	Organised Seminar on "Herbal Wealth – Traditions and New Approaches" , organised by NMCC, Marthandam , on 2011-2012.

2.	Organised Seminar on "Recent Trends in Arts and Science" , organised by NMCC, Marthandam , on 2011-2012.

3.	Organised Seminar on "Conservation and Management of Wetlands in an Era of Climate Change" , organised by NMCC, Marthandam , on 2009-2010.

4.	Organised Seminar on "Recent Innovations and Challenges in plant Taxonomy" , organised by NMCC, Marthandam , on 2008-2009.

1.	Organised Workshop on "Advanced leadership training for the heads of the rural institutions" , organised by Research committee, Nesamony Memorial Christian College, Marthandam, on 2019-2020.

2.	Organised Workshop on "Recent innovations in Teaching, Learning and Evaluation for Quality higher Education" , organised by Research committee, Nesamony Memorial Christian College, Marthandam, on 2018-2019.

3.	Organised Workshop on "Contemporary Environmental issues and conservation of Southern Western Ghats" , organised by Department of Botany, Nesamony Memorial Christian College, Marthandam, on 2018-2019.

1.	Member for Research Committee in 2021-2022

2.	Member for Research Committee in 2022-2023

3.	Member for Eco Club in 2019-2020

4.	Member for Research Committee in 2019-2020

5.	Convenor for Gardening Committee in 2022-2023

6.	Member for Discipline Committee in 2024-2025

7.	Member for Research Committee in 2021-2022

8.	Member for Research Committee in 2024-2025

9.	Member for Eco Club in 2022-2023

10.	Member for Eco Club in 2024-2025

11.	Member for Eco Club in 2020-2021

12.	Convenor for Gardening Committee in 2024-2025

13.	Member for Eco club in 2021-2022

14.	Member for Eco Club in 2021-2022

15.	Member for Research Committee in 2020-2021