THRISSUR: The week-long ceremonies of Thrissur Pooram has begun here . The flag hoisting ceremony (kodiyettam) that was held on Thursday at Thiruvambadi and Paramekkavu temples here .The flag hoisting ceremony was also held at eight other constituent temples in and around the town. Ahead of the ‘kodiyettam’, bhoomi pooja was performed at Thiurvambadi and the ‘aasharies’ performing the ritual assessed the omen . The flag which was kept for pooja, was hoisted just before noon. The world famous pooram is on April 29th.