1. Studies on South Indian Brown algae, 1983, UGC (Rs. 6000).
2. Ultrastructural studies on Hypnea musciformis and H. valentiae, 1993-1996, UGC (Rs. 1, 64,060).
3. Utilization of Seaweed extracts as Biocides, 1993-1996, CSIR (Rs. 1, 80,000).
4. Ultrastructural studies on Fucales, Phaeophyceae with special reference to vesicles, 1997-2000, UGC (Rs. 4, 35, 000).
5. Utilization of seaweeds in domestic sewage treatment and biomass productivity, 1998- 2001, DOEn. (Co-Investigator) (Rs. 5, 60, 000).
6. Potential of Seaweed Liquid Fertilizers (SLFs) on some Agricultural Crops,
2002- 2005, UGC (Rs. 2, 53,560).
7. Environment Impact Assessment of Kappaphycus alvarezii cultivation along the coast of Mandapam, Tamil Nadu, 2006, Department of Environment, Tamil Nadu (Rs. 93,150).
8. HS – 40 Antibacterial and antifungal substances from seaweeds, 2003-2007Potential of Excellence, University of Madras (Rs. 4, 00,000).
9. Molecular characterization of Dunaliella and optimization of its beta carotene production, 2006-2009, DBT (Rs. 9, 75,000).
10. Demonstration and Extension of Culture and Cultivation of Alginophytes, Sargassum polycystem C. Agardh and S. wightii, Grev. 2008 – 2011, DST (Rs. 18, 43, 600).
11. Induction of UV-B radiation resistance in commercially important microalgae and their application in enhanced carbon sequestration and synthesis of secondary metabolites, 2011 – 2014, DST (Rs. 58,21,416/=) (PI – II: Dr. A. Ramachandran, Centre for Climate Change and Adaptation Research, Anna University – Rs. 11,80,000/=)