RED RAIN IN KERALA- A STRANGE PHENOMENON Red rain have been noticed in several parts of the world since 1818. The basic cause of red rain was unknown to the world. The findings by several other scientists which came to the conclusion that algae, lichens, pollen grains, faecal matters of honeybees, sandstorm, red soil, meteoric stones,cosmic origin etc have been contradicted. Though these agents were found on the earth for centuries red rain did not occur always. The new findings that biogas from under the earth's crust get released into the atmosphere due to natural hazards like earthquakes, landslides, collapse of wells, volcano etc. Several ores (minerals) get discharged into the atmosphere along with these biogases. These ores gives the red colour to the water and biocells.In the red rain a large number of biocells (which included algae, fungi, lichens, pollengrains etc) and various elements like Carbon (5%), Silicon(11%), Phosphorus(4%), Nickel(2%), Chromium 111 (3.5%), Chromium V1(2%), Alumina(18%), Carbonic acid(8%), Organic matter(15%) were observed.