The Champakulam Moolam Boat Race is one of the oldestvallam kali (snake boat race) (after the Aranmula Boat Race) in Kerala state of south India. The race is held on the River Pamba on Moolam day (according to the Malayalam Era M.E) of the Malayalam month Midhunam, the day of the installation of the deity at the Ambalappuzha Sree Krishna Temple.
It is said that the Raja of Chempakasseri, Pooradam Thirunal Devanarayanan, built a temple at Ambalappuzha as suggested by the royal astrologers, but just before the installation of the deity (Lord Krishna) he was informed that the idol was not auspicious.
It was important to install a suitable idol immediately. Accordingly, the priests identified another idol of Lord Krishna, kept at the Karinkulam temple in Kurichi. This idol was believed to have been given to Arjuna by Lord Krishna himself, and was therefore considered very sacred. After getting the idol from Karinkulam temple, the Raja's men set forth by boat for the return journey. While returning to Ambalappuzha, night set in, and, as instructed by the Raja, they took shelter at a Christian household, the home of Mappilassery Itty Thommen, in the village of Champakulam. Itty Thommen was a loyal subject and a confidant of the king.
Itty Thommen and his family received the men and the idol with great honour. The next day, the Raja and his entourage turned up at Mappilassery, accompanied by a huge mass of people. Pujas were offered to the deity and Itty Thommen and his men also travelled with the flotilla to Ambalapuzha where the idol was duly consecrated and installed with great fanfare. On the way, the people of Champakulam and adjoining areas, as well as the priests and laity of the Champakulam Kalloorkadu Church, honoured the Raja and the idol.
These events took place in 1545 A.D. The Raja, pleased with the love and affection shown to him by his Christian subjects, declared that henceforth, to commemorate these events, a great water carnival would be held at Champakulam every year, on Moolam day in the Malayalam month of Mithunam. Thus began the Champakulam Snake Boat Race and related functions, which continue to this day.