The Thrissur Pooram is an annual Hindu temple festival held in Thrissur Kerala India It is held at the Vadakkunnathan Temple in Thrissur every year on the Pooram daythe day when the moon rises with the Pooram star in the Malayalam Calendar month of Medam It is the largest and most famous of all poorams in India2 Thrissur pooram is also one of the largest festivals in Asia with more than 1 million visitors