Over the years though the ritual has evolved into the massive water fight that dominates streets all over the country.
At least 14 people were killed and nearly 500 others wounded in a series of blasts in Thailand's insurgency-hit southern city of Yala, in the most deadly co-ordinated attacks in years in the country.
Four separate explosions in southern Thailand, including one at an international airport, have left 2 dead and over 80 injured.
Cops believe he is part of a network and announced a reward of 1 million baht (Rs 18 lakh) for information leading to his arrest.