DR.N.K.BANERJEE, M.SC .MHMS is the ex-principal of Bengal Allen homoeopathic MEDICAL College and Hospital. He is also the ex-president of Homoeopathic state faculty, West Bengal. And vice president of homoeo-pharmaceutical chemists association. He is the author of many books including; Blood pressure • Practice of medicine • Realistic materia medica • Gonorrhea and syphilis.