1. National Symposium on Cancer Update , 1993
2. Hematological society of India, 1994
International Congress of Oral Implantologists (ICOI)
4. National Update on Neurosurgery, 1997
5. Symposium on posterior fossa surgery, 1998
6. NEUROCON, Trivendrum, 1998
7. NEUROCON, Hyderabad, 1999
8. Neurotrauma, Agra,2002
9. NEUROCON, Chandigarh,2003
Delhi Medical Association
Indian Medical Association (IMA)
Medical Council of India (MCI)
Association of Neurosurgeions of India
Ghaziabad Noida Neurosciences Association