Visha Chikithsa. (Aayurvedic Toxicology). by Vaidyavachaspathi M. Balakrishnan Nair. Vishavaidya Sree P N Neelakanthan Karala's desciple Vaidyavachaspathi M Balakrishnan Nair wrote this book Visha chikithsa. It is based on his experience in medical practice with refrence to the Agatha thanthra. this book should deal of information to students of Aayurveda and those interested in innovative research in medicine. The Holy Mother -Sri Sarada Devi. Bhagvad Gita. Values, morals and ethics, N G Nair and Yoga, Unity in Diversity,  About N G Nair from thottakom Vaikom Kottayam.