Invited Lectures/Oral Presentation 

Safety studies on combination of four Rasa-aushadies in rodents using OECD parameters. Symposium on Safety Profile of Rasaushadhies. Organized by the Department of Rasa Shastra, held at Banaras Hindu University, Varanasi on February 06 – 07, 2009.
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Herbs and Cancer Treatment. In the Division of Clinical Pharmacy, School of Pharmacy & Technology Management, NMIMS University, Mumbai on 27.01.09.
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Health an important assert for our country. Balawala Inter Mediate School, Balawala, Dehradun on 08.04.08. (Lecture was organized to spread health awareness among school student on the occasion of the World Health Day)

Evidence based herbal therapy for cancer: My experience with HUMA. Main Auditorium, Mahatma Gandhi Institute of Medical Sciences (M.G.I.M.S), Sevagram on 07.09.07. (National Seminar on Evidence Based Ayurveda & CME on Biomedical Research Methods).

The role of herbal medicine in fight against HIV/AIDS and cancer. Main auditorium, Central Plantation Crop Research Institute, Kasaragod on 16.02.07. (2nd Seminar on Evidence based & Integrative Medicine for Lymphatic Filariasis, other Chronic Dermatoses and HIV/AIDS).

Treatment of cancer with traditional and herbal medicines: implication for new drug discovery. Mini Auditorium, C.D.R.I., Lucknow on 10.08.2006.

Oral malignancy treatment with a popular alternative cancer therapy ‘HUMA’. Convention Center, Rajiv Gandhi Institute of Health Sciences, Trivandrum on 28.01.2006 (ORCA Conference 2006).

To study the effect of a poly herbal medicine ‘HUMA’ in 25 patients suffering from oral malignancy. Mowbrays Hall, Park Sheraton, Chennai on 10.12.2005 (6th INCTR Annual Meeting).

A to Z about HIV / AIDS. Institute lecture hall, Colvin Talukadar School, Lucknow on 01.12.2005.
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Complementary and alternative medicine (CAM), reverse pharmacology and drug discovery. Institute Lecture Theatre 1, Institute of Medical Sciences, Banaras Hindu University, Varanasi on 25.09.2005.
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Telemedicine: a new health care delivery system, and its importance in developing countries. Plenary lecture on “Health Care” 89th session of India Science Congress Association, Medical & Veterinary Sciences, Lucknow University 2002.
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The Role of Genetics in management of Cancer, in Department of Zoology, Dhaka University, Bangladesh.  June 1999.