Apart from a place with rich natural splendour of the Western Ghats, a vast forest reserve, & the tempting coastal curry, Idukki , or the ‘ Red Region ’, is also famous as one of the mysterious places in India. The Mystery: The red coloured rain at Idukki first fell on 25th July, 2001 , and occurred sporadically for 2 months, staining clothes and buildings as it poured. This blood-red downpour, when collected by the locals, turned into clean water with red particles settled at the bottom . The Theory: The scientists, after much analysis and debate, have zeroed in on one explanation for this occurrence. They say that the red particles are airborne spores of the locally growing alga in the region. Photos of Sight