An outbreak of poisoning in man, attributable to consumption of ergoty bajra in cetain parts of India was investigated The disease was characterised by nausea, vomiting, giddiness and somnolence. The mycotoxins appear to be alkaloids of the clavine group. Toxicity due to ergoty bajra could be distinguished from the classical European ergotism based on differences in host, species of the fungus, chemical nature of alkaloids, biological effect in animals and clinical symptoms in man. The daily non toxic quantum of alkaloid appears to be around 28 μg/kg. body weight.