1. Explorative and scientific studies on Ayurvedic concept of drug substitution for unavailable but authentic herbs (Abhava and Abhava Pratinidhi Dravyas). List of Abhava – Pratinidhi Dravyas mentioned in Ayurvedic classics
2. Studies on Ayurvedic concept of Wellness/ rejuvenative medicine (Rasayana)
3. A model to resolve the controversies related with Ayurvedic raw drug identification
4. Quality standards for minimum of 20 Ayurvedic crude drugs and products based on Traditional Knowledge
5. Authored 1 book, 12 research publications and more than 5 articles in popular media
1. Attempts to solve the controversial identity (including adulteration and substitution aspects) of medicinal plants
2. Wellness, rejuvenative medicine of Ayurveda
3. Conservation of medicinal plants under threat
4. Probiotics and nutraceuticals derived from traditional medicine
5. Basic concepts including pharmacodynamics and pharmacokinetics of Ayurvedic drugs
• Padma Venkat, Subrahmanya Kumar, Uma Magal. Rasayana for Childcare- Joy of Herbs and Healing. Partridge India, New Delhi 2015.
• Nagarajan M, Kuruvilla GR, Kumar SK, Venkatasubramanian P. Abhava pratinidhi dravya: A comparative phytochemistry of Ativisha, Musta and related species. J Ayurveda Integr Med 2015; 6:53-63.
• Nagarajan M, Kuruvilla GR, Kumar SK, Venkatasubramanian P. A review of pharmacology of Ativisha, Musta and their substitutes. J Ayurveda Integr Med. 2015; 6: 121–133.
• Kumar SK, Shashikumar A, Venkatasubramanian P. Fermented milk products: Probiotics of Ayurveda. J Medical Nutrition and Nutraceuticals 2015; 4:14-21.
• Balasubramani SP, Mohan J, Chatterjee A, Patnaik E, Kumar SK, Nongthomba U and Venkatasubramanian P. Pomegranate juice enhances healthy lifespan in Drosophila melanogaster: an exploratory study. Front. Public Health 2014, 2:245.
• Balasubramani SP, Venkatasubramanian P, Kumar SK, Patwardhan B. Plant-Based Rasayana drugs from Ayurveda. Chinese Journal of Integrative Medicine 2011; 17(2):88-94.
• Venkatasubramanian P, Kumar SK and Venugopal SN. Cyperus rotundus, a substitute for Aconitum heterophyllum: studies on Ayurvedic concept of Abhava Pratinidhi Dravya (Drug substitutions). Journal of Ayurveda and Integrative Medicine, January 2010, 1;(1):36-39.